I discovered this mod when reading a magazine. http://www.hidden-source.com/ It is so sweet. There is 1 hidden(Liek a predator) and a team of marines. Its basically kill the predator and you become the predator. However the predtor is almost invisible. Its the best mod I have played.
Cool. What the site said looked nice. :)
Im hoping to get more people into it. Its so great!