Well. This is edgy as all get-out. Phillies pitcher Cole Hamels comes to Modern Warfare 2 to tell us that mindlessly hucking grenades is a dickbag cop-out. And then there's "Fight Against Grenade Spam," which makes a cheerful acronym.
It looks like this video (NSFW language), posted by Infinity Ward, just went up. I'm not sure if Hamels is one of the celeb voices in the game or if they're just being timely with his appearance in the World Series (pitching Game Three tomorrow, no less). That is his voice however. And he tosses in a "what the fuck" for good measure, I guess because Chase Utley wasn't available.
Fighting Against Grenade Spam PSA [YouTube]