In Campaign, kill 10 enemies in under 3 seconds.

Completed Episode 5: "No Going Back"

Reached the terminus.

Reached the other side.

Took a breather.

In Dead Ops Arcade, use a Speed Boost to blast through 20 or more enemies at one time.

Destroy all enemies on vehicles during the prison break.

Completed Episode 4: "Amid the Ruins"

Survived the attack.

Reached the museum.

Learned new survival skills.

Completed Episode 3: "In Harm's Way"