Win 1 round of Operations in multiplayer

Complete Friends in High Places

Complete one challenge in the campaign

Perform a melee kill on 10 enemies anywhere in the campaign

Finish the game without saving.

Finish the game on Hard difficulty.

Finish the game saving Chris and Barry using Jill.

Save Chris from confinement using Jill.

Save Barry from Lisa Trevor.

Save Jill using Barry.

Defeat a Crimson Head prototype1 using Jill.

Burn up two zombies at the same time with the lighter.

Finish the game on Easy difficulty or higher.