Suggest a good Multiplayer FPS game

I already have the Orange box. My favorite game is Insurgency which is a Source mod. But the problem is that all the games that I used to love playing, like Urban Terror and Insurgency are unplayable now due to ping problems. So please suggest me games with lots of servers and players in India. Do people still play Counter-strike source? What about COD? It should have decent graphics and should be a bit like Insurgency in game play. Specs in Sig.