While playing a multiplayer match with clanmates, the server and everyone's game would freeze and crash forcing us to kill the process. We found that every time someone threw a smoke grenade the game would freeze. Happened a few times in a row. We started a different mission and threw more smoke grenades and the same result - game froze and crashed. First test to see if it was smoke grenades we threw 2 blue smokes, everyone's game crashed. Second was to test if it was only blue smoke grenades. Started a different mission, threw a white and orange smoke grenade and same result. I am assuming all smoke grenades will crash the server and all clients.