hey, thank for play my game
the right click is for solider upgrade you can buy it from workshop when you upgrade your turrets to level 3 and for ammo you get it from the boxes just crash it and it will give you ammo or health I explained that in How To Play panel
and it's just about upgrade your weapons so there is no swap between turrets
and yeah there is no reload in the game just destroy tanks and lot boxes by crash them our shoot them and also you can get money from enemies
and yeah may I was should make items a little cheaper.
Thanks again for try my game, good luck for your game