Call of Duty 4 Perks Trailer

Why put out a press release explaining a new feature in a game when you can just rip out the part of the game that explains it to the player and make a trailer out of it!?

That's what they did with Call of Duty 4: Modern Warfare and its 'perks' system. Just check it out below.

Perks Trailer (SD) - 10.4MB
Perks Trailer (HD) - 49.3MB