This game is one of the best games foe IOS, but it has some issues. First of all, it has a large file size. This is not a bad issue, but can be if people have too many games. Also, some of the tanks meed major rebalancing. For example, the Japanese tanks are slow, have paper thin armor, and have terrible firepower. Also, some tanks need to be able to mount better guns. For example, the T32 tier 8 American heavy tank mounts a 105 mm gun that you can research on the T29, a tier 7. That gun, despite its effectiveness against tiers 7 and below, it is terrible against other tier 8 tanks as well as any higher tiered enemies. Also, the M103, the tier 9 American heavy tank, mounts the SAME gun until you research a 120 mm gun for 31000 xp. Now, the reason the gun is so bad is that it has poor accuracy and penetration power. The alpha damage also tends to be inconsistent. There are many tanks throughout the tech trees that have the same issues. Sometimes, the next gun takes as much xp you used to research the tank! I am aware that it is so that it is harder to max out the tanks, but make it so that players have to put up with a gun that is hardly adequate for penning the sides of your enemies. Anyways, the balance experiment of a previous update made the game more fair for players who are still grinding on a stock tank. UPDATE: the new tank destroyer line is a great addition, but the event that followed came too fast for most players to even begin that chain. Only the players with a large amount of free xp could have participated. Also, there needs to be more ways to earn gold, as community events dont seem to happen anymore, and the missions that give gold are rare and dont give much gold anyways. A way to fix this would maybe be to add a free gold button, which would play an add then give the player some gold.