v3.0:

Extended all countdown objectives' countdown length to compensate for marines' reduced speed.

v2.11:

Big kills now have a chance to drop Autogun ammo box.

v2.10:

Replaced "rd_auto_kick_low_level_player 1" with "rd_auto_kick_low_level_player_if_brutal_or_challenge 1" due to the former not working as intended.

v2.9:

"rd_auto_kick_low_level_player" has now been set to 1.

v2.8:

Dropped sentries and defibrillators no longer swaps out any of your weapons when picked up.

v2.7:

Freeze Grenades in this challenge no longer freeze through walls.

v2.6:

Scripts that modify Swarm Queens now only affect the ones spawned by this challenge. Map-spawned Swarm Queens are no longer affected by this challenge (except health), preventing potential soft-locks, such as planting an objective-sensitive Swarm Queen in place when it is supposed to move.

v2.5:

Reverted the auto-removal of any existing bots.

Bots remain unable to be resurrected by defibrillators.

Bots will no longer take reduced damage.

v2.4:

Fixed Freeze Grenades' extended blast radius for this challenge not affecting Buzzers.

Removed Freeze Sentries from the loot table.

Bots will now be automatically removed from the game when they exist.

v2.3:

Adjusted Swarm Queen health as they were previously too easy to kill.

Swarm Queens no longer try to face a marine upon health depletion.