We are still using commands and replies of this game in real life :) Its the starter, best and the king of the tactical fps genre. It's musics still using in some videos or tv programs, and weapon sounds ? statistics? all is real. I played all of the rainbow series and newer versions not have the same spirit.
You must play and taste it. Feel the atmosphere, rescue the hostage , defuse the bomb!
NOT like cheaep cs style!