From GameWinners
Urinating Brute
In the campaign menu, select "The Ark" and select the "Rally Point Bravo" checkpoint under the Legendary difficulty setting. After Spark messes around with the door and gets it open, walk in very slowly while crouching. Kill a few Grunts on the left and you should begin hearing some noises. Look around the middle divider. You will see a Brute in a corner, making the noises. After you look around the corner, save the game and quit. Go to Theater mode. Select "The Ark" (if not already selected) and go into roaming camera. Once Spark opens the door, go over to the Brute (still in roaming cam) and look at it. It should look as if it is urinating.
lruys