It turns UT2004 into a full-fledged World War II eastern Front simulation, with professional-level models and animations. Slug your way across the battlefield as anything from an infantryman to a tank commander. Version 3.2 of the mod has full AI support (you can have a great single-player experience with AI filling out both teams) and some new weapons, including the devastating MG42. This mod sets the standard: there's shell-shock effects when artillery bursts near you and how much damage you take by a grenade is accurately modeled based on how much of your body is exposed to the blast. Great stuff.
http://www.fileplanet.com/promotions/RedOrchestra/
