Fix this stupid app

Couldnt be more frustrating. Spend all kinds of money on perks and then 20 min into your heated apocalypse match and the fn thing just turns off. Fix it. And I wont mention the fact that I was locked inside a game....couldnt finish the game, couldnt die, just wasting time...then Oops! It shut off again. I wont mention that. What a great app

F&@kOff about SAS: Zombie Assault 3, v3.10