Plutonium

Instead of tabbing me out it just freezes the game and i can still here sound as if the games running windowed fullscreen did not work the game just freezes everytime i try to play

I'll play fine for many rounds then suddenly the game will tab out and wont let me tab back in I can still hear game sound and sometimes my friend will see me shoot my gun when i try to tab back in but there's no way of getting back into the game once that happens so i usually have to close it