Toilet Surprise! -
8.0/10 with 2 votes
On any map that has a porta-loo, go to the porta-loo and shoot the door so it opens. When you walk in and look down the toilet bowl you can see a gingerbread man smilling back at you.
Tanks -
6.5/10 with 4 votes
In the level where you first get to drive the tanks you hear a marine yell "We can pick up chicks in it." In Red Vs Blue, a machinima based on Halo, Tucker comments about picking up chicks with a tank.