How do you make a airsoft tank?

get a truck and put the cover on top of the rear of it then cut a whole in the top to shoot out of. Or you can get a golf cart and cover it in plywood then make a whole in the front for the driver then a hole in the top for the gunner. im sorry, that probly isn't true my friend's annoying brother did that. i actually do not know, SRY!
Alternate opinion: in some countries, only real or good copy of real combat cars may took part in airsoft games. So, converting old APC will b the best way. In countries, wich support airsoft on state level, army sometimes provide equipment, like APC, military trucks and helicopters.