Want to know what Resistance Retribution looks like when you infect it with Resistance 2? GameTrailers has posted an interesting comparison video, showing the subtle (and not-so-subtle) differences that occur when you play with an infected copy. When your game is infected, you'll have access to a new health system (regeneration), and gain access to areas that won't be available to regular players. Watch the video, after the cut.

This article was originally published on Joystiq.

America's Army 3 preparing for deployment in 2009