Acceptable Losses

"Sabotage the remote airbase with your silenced weapons and heartbeat sensor."

- Spec Ops description

Acceptable Losses is the third Spec Ops mission from the group Delta. It is based on the level Cliffhanger with the player trying to sneak into and sabotage a remote airbase located in the mountains.

The Infinity Ward best time for this level is 48.15 seconds.

Overview
The level starts behind a hangar identical to the one where the ACS Module was located in the level Cliffhanger. The player must sneak their way through the base, evading patrols and planting C4 charges on an attack helicopter, a fighter jet and inside a building. After planting these the player must escape to a location marked with green smoke.

Found in level
The following weapons can be found with and without attachments.

Trivia

 * On regular, it is possible to complete the mission with the enemies alerted, but the player must sprint very quickly to escape the base, as enemies can quickly overwhelm them.
 * The ACS module from the campaign mission Cliffhanger can be found in this mission (although it can not be picked up or interacted with) near the starting point.
 * One of the objectives is to plant C4 on a large fighter plane (Not a Harrier), and there are two guards conversing next to it. If one watches them for a moment, they will notice that they perform exactly the same movements at exactly the same time.
 * If a player approaches a standing guard from behind whilst prone, they can touch the guard's legs without alerting them or the guard they are talking with. If the player repeatedly moves against their legs, the guard will appear to jerk upwards momentarily.
 * When the player picks up an unsuppressed weapon, they will be referred to as Roach by Captain MacTavish. This is most likely due to reused audio files.

Video
Video:Modern Warfare 2: Spec Ops - Acceptable Losses Veteran Guide PCAcceptable Losses Veteran Guide