You people are all forgetting that if Samuel L. Jackson was the heavy, it would top Mr. T. Now, I know some of you silly, misguided people are going to disagree, but the fact of the matter is, you're wrong. Because Sam Jackson said so.
Imagine the fear it would instill to hear a heavy go "I'm comin to get you sucka". Even scarier than hearing "Spy's sappin muh sentry" in the middle of heated combat.