Might be interesting for a map or two; otherwise seems to me it sucks donkey dicks. I don't want to just lay there waiting to see if somebody discovers me.
But there is something interesting here: that you can change your appearance. Back in the day, you could change from a "soldier" to something else in Quake - at least, I think it was Quake. Your "character" could be an animal, an object - all manner of things, and it was a real hoot to see what some players looked like. That would be a fun mod for COD.
But at the least, you should be able to change skins - to a woman or man, certainly - but also various uniforms. The ultimate mod, to me, would be the ability to upload a head shot of yourself and have it mold to your character's face so we could actually see each other; and pick body shapes for folks who are skinny, and those somewhat larger than that.