I've only played KOTH in multiplayer so far. Typically my system runs around 45-50 fps or around 30 in heavy combat. However, when a plane or tank bombs and I'm close by my game will completely lock up for 3-8 seconds depending on the duration of the explosions. I've tried multiple fixes dealing with the configuration file and with sounds processed at one time.

System specs: i7 950 oc'd @ 3.8
Gtx 980 Ti Classified version
24gb tri channel ddr3 1600
1 TB 7200 Hitachi

I've got a couple of solid states I can put Arma 3 on if that might help. It's game breaking as it stands right now since I literally can't do anything when it freezes up.