Out of all the whistle sounds, i can only hear a couple, i thought it was just my pc, but no, kill bill and spitfire both say they can only hear the same ones that i hear. So that confirms that its a sever issue, because the chances of all three of us missing the exact same sounds is almost impossible.
also just noticed that when you get a new ct, the timer on the map restarts. So your pretty much stuck on the same map.
