I think that you should be able to give your friends tank coins.......to help them get better weapons, create maps, etc etc......
Agreed. It would be nice if there was a little feature over 'Friends' where you can select their name, click 'Give TC' (Maybe on the bottom right corner?). And after you click 'Give TC', a little thing will pop up and it'll say 'Select how much'. And the number you put was less or the same as how many tank coins you got, then it'll take TC from your account to that person's. If it was over, then you'll obviously have the 'Buy Tank Coins' thing pull up.