Hey, I don't know if you heard about weapons there has a camera attachment, and the ability to bend.
This would be really useful for players there like a realistic feeling in games(me ;)), and not use thirdperson to sneak peak corners.
Take a look at these pictures if you never heard about this weird weapon.
Model: http://www.geekologie.com/2007/12/21/corner-gun.jpg
In action: http://images.gizmag.com/hero/2576_02.jpg
Sounds cool?