Update history:Heli Pilot (BTD6)

This is a list of changes to the Heli Pilot in Bloons TD 6 post-release.

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Version 4.0

Tiers	Changes
4-X-X Apache Dartship	Upgrade cost reduced ― $20,000 → $15,000
5-X-X Apache Prime	Laser: Pierce greatly increased ― ??? → 23  Plasma machine gun: Pierce greatly increased ― ??? → 11

Version 5.1

Tiers	Changes
2-X-X Pursuit	Pursuit no longer causes the game to freeze in Reverse (bug fix)
X-X-3 MOAB Shove	"MOAB Shove fixed" (bug fix)

Version 6.0

Tiers	Changes
5-X-X Apache Prime	Machine gun: damage increased by 1  Machine gun: pierce increased by 1
X-X-4 Comanche Defense X-X-5 Comanche Commander	Sub-towers no longer gain double the effects of stat buffs such as Berserker Brew (bug fix)

Version 7.0

Tiers	Changes
X-5-X Special Poperations	Special Poperations, Marine: cooldown reduced ― 50s → 40s
X-X-4 Comanche Defense	Passive ability: cooldown reduced ― 45s → 25s

Version 8.0

Tiers	Changes
4-X-X Apache Dartship	Missile attack: Explosion damage increased ― 1 → 2
4-X-X Apache Dartship 5-X-X Apache Prime	Machine gun: Fire rate increased by 25%
5-X-X Apache Prime	Machine gun: Damage increased ― 3 → 5  Missile attack: Explosion damage increased ― 11 → 16
X-4-X Support Chinook X-5-X Special Poperations	Supply Crate: Now starts with its full cooldown
X-X-4 Comanche Defense X-X-5 Comanche Commander	Sub-towers now consume Alchemist brew charges (bug fix)

Version 9.0

Tiers	Changes
0-0-0 base tower	Description changed ― "Hovers wherever you last tapped the screen. Shoots from twin heavy dart guns." → "Hovers wherever you direct it. Shoots from twin heavy dart guns."

Tiers	Changes
4-X-X Apache Dartship	Upgrade cost increased ― $19,500 → $19,600
X-4-X Support Chinook	No longer reverts placement settings after being canceled (bug fix)

Version 10.0

Tiers	Changes
X-5-X Special Poperations	Marine ability: no longer spawns Marines at the previous location of activation instead of the Heli's current location (bug fix)

Version 11.0

Tiers	Changes
All tiers	Lock in Place and Patrol Points no longer immediately prompt to choose target positions and instead have default positions  After changing targeting off of Lock in Place or Patrol Points, changing back returns the target(s) to how it was previously "Heli Pilots should no longer cause save files to not load sometimes" (bug fix)
X-4-X Support Chinook	"Resolved a crash with support chinook redeploy"

Version 12.0

Tiers	Changes
X-5-X Special Poperations	Marines are now saved

Version 15.0

Tiers	Changes
X-X-4 Comanche Defense	Passive ability: max activations per round increased ― 1 → 2

Version 17.0

Tiers	Changes
0-0-0 base tower	Cost increased ― $1,500 → $1,600
X-4-X Support Chinook X-5-X Special Poperations	Redeploy: Now allows Sniper Monkeys to attack while in transit (bug)
X-X-4 Comanche Defense	Description changed (undocumented) Before Automatically calls in 3 more Comanches when they're most needed. After Automatically calls in mini Comanches when they're most needed.

Version 17.1

Tiers	Changes
X-4-X Support Chinook X-5-X Special Poperations	Redeploy: No longer allows Sniper Monkeys to attack while in transit (bug fix) Note: Does not affect Door Gunner Redeploy: Can no longer target Dark Knight (or a higher tier) while it is using Darkshift (bug fix)
X-5-X Special Poperations	Marine: Activating the ability when the Heli is about to redeploy a tower no longer causes it to keep spawning Marines in the same place every few seconds (bug fix)

Version 18.0

Tiers	Changes
X-X-1 Faster Darts X-X-2 Faster Firing	Faster Firing and Faster Darts upgrades have swapped tiers
X-X-4 Comanche Defense	Mini Comanches now spawn based on Bloon progress during the round, instead of whenever there is at least 2,000 RBE on-screen with a 25s cooldown  Now spawns a variable number of mini Comanches depending on progress, refreshing the duration of existing Comanches each time a new threshold is reached per round, instead of always spawning three (duration remains 10s) Spawns 1 mini Comanche the first time a Bloon crosses 25% of the track Spawns 2 mini Comanches the first time a Bloon crosses 50% of the track Spawns 3 mini Comanches the first time a Bloon crosses 75% of the track  Comanche will now spawn from the side of the map closest to where the triggering Bloon is located
X-X-4 Comanche Defense X-X-5 Comanche Commander	Mini Comanche: Movement speed increased ― 45 → 75
0-1-4 Comanche Defense + Bigger Jets and further upgrades	Bigger Jets now applies to mini Comanches
X-X-5 Comanche Commander	Mini Comanches will load in under the main Commander when loading a save instead of at the edge of the screen

Version 19.0

Tiers	Changes
X-X-4 Comanche Defense	Upgrade cost reduced ― $10,000 → $8,500

Version 20.0

“

Pursuit Downdraft has felt like an overperformer for a very long time, but instead of outright nerfing it we increased crosspath potential for those who manually take control over their heli micro. On the opposite end of the spectrum, Pursuit Razor Rotors has underperformed due to distancing itself far too much, so we increased the range of this attack slightly.
— Update notes

”

Tiers	Changes
3-X-X Razor Rotors and further upgrades	Razor Rotors: area increased ― 33 → 35
X-3-X Downdraft and further upgrades	Downdraft: rate reduced ― 0.125s → 0.15s
0-3-2 Downdraft + Faster Firing 0-4-2 Support Chinook + Faster Firing 0-5-2 Special Poperations + Faster Firing	Downdraft: rate increased ― 0.125s → 0.12s
X-X-4 Comanche Defense	Comanche Defense: duration increased ― 10s → 12s

Version 21.0

“

Heli Pilot manages on pursuit far too easily without any need to consider Bigger Jets unless camo or downdraft is required. For more crosspath variety than just ‘camo’ we moved more of the base Heli speed out and back into Bigger Jets with an overall buff to Bigger Jets. This should allow Bigger Jets to scale a little better than other helis through early speed ramping. Due to overall comparisons between Downdraft’s blowback & MOAB Shove we have also slashed MOAB Shove’s price by 30% to give it & Comanche more of a kickstart
— Update notes

”

Tiers	Changes
All tiers up to: 4-X-X Apache Dartship X-X-4 Comanche Defense	Movement speed reduced ― 45 → 40
5-0-X Apache Prime X-0-5 Comanche Commander	Movement speed reduced ― 56.25 → 50
5-1-0 Apache Prime + Bigger Jets 5-2-0 Apache Prime + IFR 0-1-5 Comanche Commander + Bigger Jets 0-2-5 Comanche Commander + IFR	Movement speed reduced ― 83.75 → 80
X-1-X Bigger Jets X-2-X IFR X-3-X Downdraft X-4-X Support Chinook	Movement speed increased ― 67.5 → 70
X-5-X Special Poperations	Movement speed increased ― 84.375 → 87.5
X-X-3 MOAB Shove	Upgrade cost reduced ― $5,000 → $3,500

Version 22.0

“

A little more buffing of underused crosspath
— Update notes

”

Tiers	Changes
0-1-3 MOAB Shove + Bigger Jets and further upgrades	Bigger Jets now allows MOAB Shove to push back faster MOAB speed: -0.33 → -0.44 BFB speed: 0 → -0.11 ZOMG/DDT speed: 0.33 → 0.22

Version 23.0

“

Further small buff to Comanche as prior balancing has not felt sufficient.
— Update notes

”

Tiers	Changes
X-X-4 Comanche Defense	Mini-Comanche — passove summon: Duration increased ― 12s → 15s

Version 24.0

“

Razor Rotors doesn’t synergize well with it’s own T2 and is kinda the dunce of T3 Helis
— Update notes

”

Tiers	Changes
3-X-X Razor Rotors and further upgrades	Rotors: Damage increased ― 1 → 2

Version 25.0

Tiers	Changes
5-X-X Apache Prime	Machine Gun: Damage type changed ― Corrupted damage type functionally identical to Normal → Energy (undocumented) (bug fix) Note: Dart Gun reported to still be Normal or corrupted damage type

Version 26.0

“

We’ve noted that Special Poperations has save-up issues, and then once owned has uptime and single target issues. With the 30 second duration, it now has potentially no downtime and instead allowing careful (or techbot) management to give a short burst of increased single target.
— Update notes

”

Tiers	Changes
X-5-X Special Poperations	Marine: ability cooldown reduced ― 40s → 25s  Marine: pierce reduced ― 30 → 20 Special Poperations will no longer crash the game if disabling MK after picking up a door gunner (bug fix)
X-X-4 Comanche Defense	Comanche Defense should no longer be completely and utterly bonk on Workshop (bug fix)
X-0-4 Comanche Defense	Should now correctly be able to spawn Mini-Comanche if it is granted camo detection from an external source (bug fix)

Version 27.0

“

As a small quality of life feature Chinook’s redeploy ability has been reworked to allow slight movements of towers in a single use, rather than having to move them away and then use another redeployment to move them back again.
— Update notes

”

Tiers	Changes
X-4-X Support Chinook X-5-X Special Poperations	Redeploy: Now ignores the footprint of the selected tower when choosing where to relocate it

Version 28.0

“

For similar reasons to Sniper, Chinook is a pretty annoying tower to farm with, so its ability has been standardized into a single producing both a life & a cash crate on a longer cooldown; the cash production of this has gone up while the life generation has been reduced as the power stood out too much compared to any other life generation method. MOAB Shove has had a missile attack similar to xx4’s mini comanches added to provide this path something extra for when the mini comanche are not active.
— Update notes

”

Tiers	Changes
X-4-X Support Chinook	Support Drop: Cash value is no longer randomized ― $1,000–$2,000 → $1,800  Support Drop: Life value is overall decreased and no longer randomized ― 50–75 → 10
X-4-X Support Chinook X-5-X Special Poperations	Support Drop: Now stops recharging during a round if 3 minutes elapse after the start  Support Drop: Now drops both life and cash crates instead of alternating  Support Drop: Cooldown increased ― 60s → 90s
X-5-X Special Poperations	Support Drop: Cash value is overall increased and no longer randomized ― $1,000–$2,000 → $4,500  Support Drop: Life value is overall decreased and no longer randomized ― 50-75 → 25
X-X-3 MOAB Shove	Missile attack added
X-X-4 Comanche Defense X-X-5 Comanche Commander	Missile attack added, with increased damage and pierce compared to the previous tier

Version 30.0

“

Comanche Defense mostly suffered during downtime and so the base Heli at T4 has had some general improvements made to power, but the mini helis have also gained a pierce increase to provide the darts with some improved crowd control
— Update notes

”

Tiers	Changes
X-X-4 Comanche Defense	Main Comanche dart attack: Damage increased ― 1 → 2
X-X-4 Comanche Defense X-X-5 Comanche Commander	Main Comanche missile attack: Attack cooldown reduced ― 3s → 1s (attack speed increased by 200%)  Mini Comanche dart attack: Pierce increased ― 3 → 4
X-X-5 Comanche Commander	Main Comanche dart attack: Damage increased ― 2 → 3

Version 31.0

“

Previously Razor Rotor’s used to make the heli pursue for a further distance & this caused it to often fail to reach Lead Bloons with the rotor attack that could pop them. This overall seemed like a design flaw so that back-off distance has been moved up to the T4 instead. Apache Dartship has also fallen off over time as a viable saveup for prime, though it is meant to be reasonably difficult some changes have made this a little more difficult than it probably should be so we have increased the pierce of the machinegun attack.
— Update notes

”

Tiers	Changes
3-X-X Razor Rotors	Razor Rotor’s Pursuit targeting modified to move closer to the Bloons Note: 4xx and above unaffected
4-X-X Apache Dartship	Machine gun: Pierce increased ― 5 → 7 Note: Apache Prime unchanged
1-0-4 Comanche Defense + Quad Darts	Mini Comanches now correctly fire 5 darts at a time with Quad Darts crosspath (bug fix)
X-X-5 Comanche Commander	Comanche Commander's damage has been corrected with crosspaths (bug fix)

Version 31.1

“

But really you should just never be trying this in the first place
— Update notes

”

Tiers	Changes
X-4-X Support Chinook X-5-X Special Poperations	Resolved an issue with chinook trying to move towers off of ice platforms (bug fix)

Version 32.0

“

Heli’s blowback has always been extremely effective from early on, and as players have become more knowledgeable the use into lategame as well only seems to go up especially moving into Super Ceramics. This change shouldn’t really have as large an impact at higher level gameplay as total map length is so much shorter you will often still be blowing back the entire track, but the blowback range has been reduced at T3 leading back into the old value at T4
— Update notes

”

Tiers	Changes
X-3-X Downdraft	Downdraft: Blowback distance reduced ― 32-300 → 32-150 Note: Support Chinook unchanged

Version 33.0

“

Heli’s Razor Rotors don’t scale with higher tiers so improvements have been made specifically to that attack for Dartship & Apache Prime. Support Chinook use is too niche outside of farming for the high cost, so the upgrade cost along with that effective cash gain amount from ability usage has been lowered to retain the same farming while improving niche use. Downdraft has more general use throughout the game and scales better than the more expensive MOAB Shove upgrade though they both see use, so the price of these upgrades has been swapped around. Faster Darts xx1 upgrade will now increase the attack distance of Heli Dart attacks in order to assist with cluttering issues where large numbers of Helis will push each other away from nearby targets.
— Update notes

”

Tiers	Changes
4-X-X Apache Dartship	Rotor: Damage increased ― 2 → 4  Rotor: pierce increased ― 10 → 20
5-X-X Apache Prime	Rotor: damage increased ― 2 → 8  Rotors: pierce increased ― 10 → 40
X-3-X Downdraft	Upgrade cost increased ― $3,000 → $3,500
X-4-X Support Chinook	Upgrade cost reduced ― $12,000 → $10,500  Crate: Cash reduced ― $1,800 → $1,650
X-X-1 Faster Darts and all crosspaths X-X-2 Faster Firing and all crosspaths X-X-3 MOAB Shove and further upgrades	Faster Darts now increases attack distance of dart attacks by +30%
X-X-3 MOAB Shove	Upgrade cost reduced ― $3,500 → $3,000

Version 34.0

Tiers	Changes
X-X-4 Comanche Defense	Comanche xx4 upgrade damage should no longer incorrectly change with crosspathing (bug fix)

Version 35.0

“

ComCom is both lacking in pierce damage, and favors the 105 crosspath more than we’d like. This goal for this change is to improve the overall single target power for the missile AoE without such a high pierce number, with only a smaller damage buff for the main darts so existing pierce benefits that can be applied for the main attack remain valuable
— Update notes

”

Tiers	Changes
All tiers	Heli 'patrol point' markers now visually update immediately after setting new points (bug fix)
X-5-X Special Poperations	Resolved an issue with Door Gunner ignoring helipads as blocking objects for dropoffs (bug fix)
X-X-4 Comanche Defense X-X-5 Comanche Commander	Missile pierce for both main and mini reduced ― 100 → 80
X-X-5 Comanche Commander	Dart damage increased ― 3 → 4  Main missile damage increased ― 3 → 7  Main missile MOAB-class bonus increased ― +2 → +5  Mini missile damage increased ― 2 → 5  Mini missile MOAB-class bonus increased ― +2 → +5

Version 36.0

“

For how powerful downdraft is in comparison to other blowback effects, it didn’t feel right that it wasn’t blowing off status effects as should be normal there. Redeploy feels like it has no business having so long a cooldown, maybe it could see more realistic use cases for this main mechanic if it was able to be utilized more frequently.
— Update notes

”

Tiers	Changes
X-3-X Downdraft and further upgrades	Downdraft: Now removes ice and glue mutators from affected Bloons
X-4-X Support Chinook X-5-X Special Poperations	Redeploy: Cooldown reduced ― 60s → 45s

Version 37.0

“

Even with the map-range advantage, rotors are weak compared to any other constant AoE circle like this. Chinook feels like it’s near a place we are happy with now, however we want another tiny nudge on cost while keeping cash generation value the same. Pushing some higher values on the last Comanche Commander changes as the missile attack is effectively such a small portion of the tower’s total damage late game.
— Update notes

”

Tiers	Changes
3-X-X Razor Rotors and further upgrades	Razor Rotors: attack cooldown reduced ― 0.75s → 0.5s
3-0-2 Razor Rotors + Faster Firing and further upgrades	Razor Rotors: now benefits from the faster firing crosspath ― 0.75s → 0.4s
X-4-X Support Chinook	Upgrade cost reduced ― $10,500 → $9,500  Supply Crate: cash generated reduced ― $1650 → $1550
X-4-X Support Chinook X-5-X Special Poperations	Supply Crate: Max uses per round reduced ― 3 → 2
X-X-4 Comanche Defense X-X-5 Comanche Commander	Comanche mini's follow the target priority set on their main Heli
X-X-5 Comanche Commander	Missile: damage increased ― 7 → 15  Missile: MOAB bonus increased ― +5 → +8  Comanche mini's missile: damage increased ― 5 → 15  Comanche mini's missile: MOAB bonus increased ― +5 → +8

Version 38.0

•  Blowback no longer works on Bloons near the entrance (bug fix)

“

Given Downdraft has competed as one of the most debated best towers in the game basically for its entire life for both early and late game we are reducing some of the extreme effectiveness against late game Super Ceramics by reworking it to have an overall increased effect of blowing back multiple smaller children at a time but now requiring 2 pierce to blow back ceramics. At the same time, the T4 Support Chinook is also having a large increase to make it now a more powerful real end-game choice for a lategame version of Downdraft that can quickly deal with large groups of Super Ceramics.
— Update notes

”

Tiers	Changes
X-3-X Downdraft	Downdraft: Attack cooldown increased ― 0.15s → 0.225s (attack speed reduced by 33.33%) Note: Support Chinook unchanged  Downdraft: Pierce increased ― 1 → 2
X-3-X Downdraft and further upgrades	Downdraft: Ceramics now consume +1 pierce
X-4-X Support Chinook X-5-X Special Poperations	Downdraft: Pierce increased ― 1 → 4  Downdraft: Maximum blowback distance decreased ― 300 → 150  Downdraft: Gains +1 pierce penalty to all bloons when crosspathed (undocumented) (bug)

Version 39.0

“

Support Chinook struggles to do anything with its main attack due to the projectile spawn offset changing at this tier, so we’re slightly tweaking the main attack to assist it here. While the state of Comanche Defense has come a good way, xx5 still feels too expensive for what it offers.
— Update notes

”

Tiers	Changes
X-4-X Support Chinook X-5-X Special Poperations	Dart: Projectile size increased ― 3 → 6  Dart: Damage increased ― 1 → 2 Note: These buffs are considered nerfs to stalling
X-X-5 Comanche Commander	Upgrade cost reduced ― $35,000 → $32,000

Version 40.2

•  Patched a bug that involved upgrading Chinook into Special Poperations while moving a tower allowing towers to be placed anywhere on the map (undocumented) (bug fix)
  • Note: A harder version can still be performed using Total Transformation

Version 41.0

“

Pursuit will now interact with Patrol Points in a limited ‘pursuit between points’, with this now you will be able to make your pursuit heli stay on one side on multi-path maps without getting stuck in the middle. Razor Rotors is fairly good now, but it could still justify a little more power given the weaknesses of the expensive upgrades that it builds into.
— Update notes

”

Tiers	Changes
2-X-X Pursuit and further upgrades	Pursuit upgrades the Patrol Points flight pattern to a ‘Pursue Between Points’
3-X-X Razor Rotors and further upgrades	Razor Rotors rotors: Attack cooldown reduced ― 0.5s → 0.45s
2-0-5 Comanche Commander + Pursuit	Comanche Commander no longer deals +1 damage on 2 out of 4 darts (bug fix)

Version 41.1

Tiers	Changes
X-X-4 Comanche Defense	Comanche Defense mini helis expire correctly (bug fix)

Version 42.0

“

The blowback rate of Special Poperations is being increased to reflect the previous changes upgrading downdraft to support chinook and bring up more lategame value in the support capabilities of this path. Comanche Commander’s value soared recently with buffs along with the recent Geraldo subtowers bugfix which solidified it as a strong lategame dps, and given the powerful synergies right now the current price feels far too low for what is now a solid pick for any map; we feel this may not be enough of a nerf but wish to hold off until v43 for further changes to be considered with this synergy.
— Update notes

”

Tiers	Changes
X-5-X Special Poperations	Downdraft attack cooldown reduced ― 0.15s → 0.075s
X-X-3 MOAB Shove and further upgrades	MOAB Shove no longer ignores the children of the target it is shoving (bug fix)
X-X-5 Comanche Commander	Upgrade cost increased ― $32,000 → $35,000

Version 43.0

“

Overall Comanche cleanup and stats shuffle; with the goal of improving baseline non-buffed performance and making it less demanding of Geraldo’s Pickle for high damage.
— Update notes

”

Tiers	Changes
X-5-X Special Poperations	Marine: Can now be sold in CHIMPS
X-X-4 Comanche Defense	Mini missile: Damage increased ― 1 → 4  Mini missile: Pierce dencreased ― 80 → 60  Mini missile: Ceramic bonus increased ― +1 → +2  Mini missile: No longer does +2 bonus MOAB-class damage
X-X-4 Comanche Defense X-X-5 Comanche Commander	Mini dart: Attack cooldown increased ― 0.151848s → 0.228s
X-X-5 Comanche Commander	Mini dart: Damage increased ― 2 → 3  Mini missile: Ceramic bonus increased ― +1 → +10  Mini missile: No longer does +8 bonus MOAB-class damage

Version 44.0

“

Players have noticed the life crate has more collection radius than the cash crate, and that this causes problems for some strategies / challenges as you don’t always want to increase lives, so these radius have been matched. Special Poperations struggles to fit into competitive strategies due to it serving a different purpose than the T4, so the cooldown of the Support Chinook ability at T5 is now being greatly reduced in order to continue building on what is good about the T4 even for strategies that may not need the Marine specifically.
— Update notes

”

Tiers	Changes
X-4-X Support Chinook X-5-X Special Poperations	Lives crate collection radius reduced ― 100 → 50
X-5-X Special Poperations	Redeploy cooldown reduced ― 45s → 15s Note: This also means purchasing the Special Poperations upgrade reduces the current cooldown by 30 seconds more  Door Gunner cooldown reduced ― 45s → 15s
0-1-3 MOAB Shove + Bigger Jets	"Should again correctly increase pushback amount" (bug fix)

Version 45.0

“

Among technical players we’ve received feedback that the massive range of the Heli’s missiles causes problems with controlling what heli’s choose to attack & when so we’ve reduced the range of these missiles to a more reasonable number, this is still double the range of the Heli so the missiles will continue to fire first before other attacks but not quite from so far away. As MOAB Shove introduced a supportive mechanic at T3 but never expanded on this again we want to start playing around with this some more, it’s quite strong for a T3 so the slow amount was reduced but we’ve made the T4 now better than the T3 was before.
— Update notes

”

Tiers	Changes
4-X-X Apache Dartship 5-X-X Apache Prime	Missile: targeting range reduced ― 173 → 84 Note: Reducing targeting range of missile will reduce opportunities to waste projectile lifespan on chasing Bloons.
X-3-X Downdraft	Downdraft: attack cooldown reduced ― 0.225s → 0.2s Note: Also affects 0-3-2 crosspath ― 0.18s → 0.16s. Support Chinook unchanged.
X-X-3 MOAB Shove	Shove: BFB speed while being shoved is higher ― 0× → 0.1× Note: Also affects 0-1-3 crosspath ― 0.1× → -0.01×. Shoving speed for Comanche Defense and above remains the same
X-X-3 MOAB Shove and further upgrades	Shove: MOAB speed while being shoved is higher ― -0.33× → -0.3× Note: Also affects 0-1-X crosspath ― -0.44× → 0.41×.
X-X-4 Comanche Defense X-X-5 Comanche Commander	Shove: ZOMG/DDT speed while being shoved is lower ― 0.33× → 0.22× Note: Also affects 0-1-X crosspath ― 0.22× → 0.11×.

Version 47.0

“

We’re raising move speed for Apache Dartship up to match Prime to improve skillful use in some more difficult situations mainly assisting on spread path maps
— Update notes

”

Tiers	Changes
4-0-X Apache Dartship	Flight speed increased ― 40 → 50 Note: Does not affect Apache Prime (50)
4-1-0 Apache Dartship + Bigger Jets 4-2-0 Apache Dartship + IFR	Flight speed increased ― 70 → 80 (undocumented) Note: Does not affect Apache Prime (80)

Version 48.0

“

Some price is moving out from base Heli into the T3s to make progression up through low heli tiers easier, however Downdraft is retaining the current price as a small buff. Support Chinook is receiving improvement to utility to increase value for people generally wanting this upgrade for other reasons.
— Update notes

”

Tiers	Changes
0-0-0 base tower	Cost reduced ― $1,600 → $1,500
3-X-X Razor Rotors	Upgrade cost increased ― $1,750 → $1,850
X-4-X Support Chinook	Flight speed increased ― 70 → 80
X-5-X Special Poperations	Flight speed increased ― 87.5 → 100
X-X-3 MOAB Shove	Upgrade cost increased ― $3,000 → $3,100

Version 49.0

“

In order to improve potential synergies, we have finally decided to do away with the pierce cap on Downdraft. This means that, yes, you can now properly Alch buff your Downdraft support. For improved quality of life Support Chinook has been enabled for use between rounds, we have concerns with this but will give it some time to see how things settle. As its utility is impressive throughout the entire game for the relatively low cost MOAB Shove’s price is increasing
— Update notes

”

Tiers	Changes
X-3-X Downdraft and further upgrades	Downdraft: Pierce cap removed ― 2 → ∞ Note: This does not affect its regular pierce, but now allows it to receive pierce buffs.
X-4-X Support Chinook X-5-X Special Poperations	Reposition ability: Can now be used between rounds  Reposition ability: Can now move towers on to ice and ink platforms (undocumented)  Downdraft: Crosspaths no longer grant +1 pierce penalty to all Bloons (bug fix)
X-X-3 MOAB Shove	Upgrade cost increased ― $3,100 → $3,400

Version 50.0

“

For quality of life the ‘Drag to Redeploy' textbox now disappears earlier during tower redeployment. Door Gunner is now allowed to be used between rounds to reduce that start of round stress.
— Update notes

”

Tiers	Changes
X-4-X Support Chinook and further upgrades	Redeploy ability: "Drag to Redeploy" textbox now hides once a tower is selected to be moved, instead of after confirming placement Note: This improves visibility with towers placed at the top of the screen
X-5-X Special Poperations	Door Gunner ability: Can now be used between rounds

Version 51.0

“

MOAB Shove’s stalling potential was far too strong for how early and cheaply it becomes available, so we’re dialing back the ZOMG slow amount to keep its late-game impact more balanced. In return, Comanche Defense is getting an increase to these slowing capabilities, giving it the utility for controlling ZOMG movement.
— Update notes

”

Tiers	Changes
X-4-X Support Chinook and further upgrades	Should no longer be able to stack towers (bug fix) Note: This attempts to fix an exploit where two separate Chinook abilities would be able to stack towers on top within a brief window between activating placements of different towers
X-X-3 MOAB Shove	Homing missile: Damage increased ― 1 → 2 Note: X-X-4 Comanche Defense unchanged (3)
X-0-3 MOAB Shove	MOAB Shove: Multiplier for ZOMGs/DDTs increased ― ×0.33 → ×0.61 Note: This means ZOMGs/DDTs move less slow while being shoved. X-X-4 Comanche Defense multiplier is 0.2
0-1-3 MOAB Shove + Bigger Jets 0-2-3 MOAB Shove + IFR	MOAB Shove: Multiplier for ZOMGs/DDTs increased ― ×0.22 → ×0.5
X-0-4 Comanche Defense and further upgrades	MOAB Shove: Multiplier for MOABs decreased ― ×−0.3 → ×−0.4 Note: This means MOABs will be pushed back faster while being shoved  MOAB Shove: Multiplier for ZOMGs/DDTs decreased ― ×0.22 → ×0.2 Note: This means ZOMGs/DDTs move slower while being shoved
0-1-4 Comanche Defense + Bigger Jets and further upgrades	MOAB Shove: Multiplier for MOABs decreased ― ×−0.41 → ×−0.51  MOAB Shove: Multiplier for ZOMGs/DDTs decreased ― ×0.11 → ×0.09

Version 51.1

Tiers	Changes
X-4-X Support Chinook and further upgrades	Redeploy Ability: Can again reposition towers on top of themselves

Version 52.0

“

MOAB Shove heli’s still stall ZOMGs incredibly efficiently for such a cheap tower, so we are furthering the previous nerf to ZOMG slow amount, still leaving Comanche Defense unchanged
— Update notes

”

Tiers	Changes
X-0-3 MOAB Shove	MOAB Shove: Speed multiplier for BFBs increased ― 0.1× → 0.11×  MOAB Shove: Speed multiplier for ZOMGs and DDTs increased ― 0.61× → 0.75× Note: X-X-4 Comanche Defense unchanged (0× and 0.2× respectively). The previous value listed for the ZOMG multiplier in the patch notes has the Bigger Jets upgrades applied.
0-1-3 MOAB Shove + Bigger Jets	MOAB Shove: Speed multiplier for BFBs increased ― −0.01× → 0×  MOAB Shove: Speed multiplier for ZOMGs and DDTs increased ― 0.5× → 0.64× Note: 0-1-4 Comanche Defense unchanged (−0.11× and 0.09× respectively).

Version 54.0

“

Downdraft’s blowback rate is being increased to improve consistency and, while Support Chinook’s fire rate remains unchanged, to save you some clicks the cash and life generation will now trigger all instances at once. I just love pasta. Since players have noted the irony of a Marine being in the Chinook path but unmovable and awkward to place, so the Marine is now fully redeployable, enjoy! Finally, MOAB Shove’s flexible stalling still stands out as particularly powerful through the whole game, we still want to take our time slowly nerfing this but to reduce single-target lockout we’re increasing the missile damage.
— Update notes

”

Tiers	Changes
X-3-X Downdraft	Downdraft: Attack cooldown reduced ― 0.2s → 0.18s (attack speed increased by 11.11%) Stacks with X-X-2 Faster Firing ― 0.16s → 0.144s
X-4-X Support Chinook X-5-X Special Poperations	Supply Drop ability: Activating the ability will now trigger it for all available towers  Redeployment ability: It can now be used on the Monkey Marine
X-X-3 MOAB Shove X-X-4 Comanche Defense	Missile attack: Bonus damage to MOAB-Class Bloons increased ― +2 → +5