Follow orders and defeat all liabilities.

Kill 100 zombies with CQC (lifetime)

Collect 3 G-Virus Samples in one match.

Complete all U.S.S. missions on Professional.

Attempt "The Rescue" and survive.

Complete the fifth mission of the U.S.S. campaign.

Complete the fourth mission of the U.S.S. campaign.

Achieve a 5 kill streak in a Versus match.

Purchase all abilities for one character class.

Infected 13 times (lifetime)

Kill an infected teammate with a headshot before they become a zombie in any mode.

Witness the beginning of the Raccoon City outbreak.