The Escalation Add-on for Call of Duty: Black Ops has 5 achievements.
In Call of the Dead, cut the lights on the Director
In Call of the Dead, send the crew to Paradise in solo or co-op.
In Call of the Dead, send the crew to Paradise in co-op
In Call of the Dead, make a zombie explode using the V-R11
In Call of the Dead, kill 10 zombies with one Scavenger shot from over 100 feet away