I used to play Raven Shield. We had some very cool custom maps on our dedicated server. A guy in our gaming group keep it going just until recently. Will always be one of the best games to come out. Some are playing APD and BF3 now. Come check out our group at swatgaming.net.
Anyone play any of the Ghost Recons, Essentially the same thing with bigger maps, and more stealth centered. Its by Tom Clancy as well. I played Desert Siege for years with some friends, till we had the perfect plan for each map. Now I can't even get the older games to work properly on my Win 7.