I think we should add in tankmen. As said, these "Tankmen" can be added into your tank and give it special enhancements. The "tankmen" could also be traded with others by paying crystals and only to others within a rank limit. Also the size of the hull can affect the tankmen inside of the tank, like 1 or 2 in wasp while 5-6 in mammoth. The only problem with this is that players might want to sell the tankmen, so the tankmen with the buffs could have an time period for how long they are acquired, and other tankmen have no buffs can be permanent. Another way of doing this is we could also have a cool-down period with the tankmen with the buffs using the time-period of the games the player plays or the score he/she makes. Also, i'm not exactly sure if anyone else has tried to say this and i have searched. Also.. my computer lagged and i'm not sure if i posted this in the ideas and suggestions section..

Me wished i haves m3 fire bird and m3 Dictator :D plus i'm going to get crystals from 30$ (in January)