Dirigibully
Kill all penguins stationed on the small zeppelin in Chapter 8 (Single Player)
3/23/2014
5:20:45 PM
Rare 33.6%
Laser Assist
Kill an enemy by knocking him into a laser door (Single Player)
3/23/2014
4:57:54 PM
Rare 23.2%
One Shot One Kill
Kill 10 enemies, each with one gunshot (Single Player)
3/17/2014
6:13:54 PM
Common 53.6%
