All the games are fixed. Every game has at least one or two players scoring 10 to kills or more- I just played a game where one moron got 26. Unless you r willing to pay a fortune to be a premium player you will never get anywhere.
Tanks cost a fortune and involve passing stupid challenges before u can move on.
Promotions are pointless and upgrades absurdly expensive and of little benefit, and now they have introduced Crew Members - another pointless exercise. This is game is just an excuse to con you out of money