I've lost all my progress and my purchases the sever fallid to load and I've lost everything was halfway through chapter 2 and even purchased no adds cuase the game is fun but adds are forced on you constantly along with micro transactions not mention the balancing of enemy's if don't have u guns fully repaired and upgraded at a high level the tank all shots and take far to long to kill them. the grind for silver is unreal thing become to expensive while not earning enough silver to keep up fix