I will be using some separate pieces for the design so warping it so the treads will fit will be no problem. Also do you want the tank to be something closer to classic war, or futuristic war?

Ok I have 4 weapon Ideas

Black laser:

An extreme power weapon, capable of making the target loose control of his or her vehicle for 30 seconds, it will also cause the target to re-spawn, the laser is about 5 times as thick as a sniper laser, and the color is mostly black with a hint of purple and blood red.

after 1 shot the weapon will recharge

recharge time:60 seconds

maximum range: sniper laser range.

Green laser mode 1:

An all most constant fire weapon

after 60 shots the weapon will recharge

recharge time: red laser recharge time.

maximum range: regular green laser range

green laser mode 2:

a close range weapon that can fire 4 shots at the same time.

maximum range=quarter regular green laser range

after 4 shots recharge will begine

recharge time: 10 seconds.

green laser mode 3:

an automatically aimed green laser.

maximum range: regular green laser range

2 shots before recharge

recharge time: 2 seconds

I am thinking green laser mode 3 is controlled by the driver, the gun auto aims, then the controller tells it to fire.

The black laser, green laser mode 1, and green laser mode 2 should be controlled separately.

If a tank is hit by a black laser, all its controllers respawn and lose control, leaving the tank in a position that enemies can take over.

if a tank gets hit by sniper laser it loses power for 5 seconds, only the auto aim laser will function when the tank loses power. (it would be tis way as the tank would not likely be affected by most lasers.

if a weapon gets shot the the shot will obscure the weapon aim, making it aim sup a few degrees, before reseting back to where it needs to be.

tanks should be something that the creator of a game can ban, as they are only for war, and if something like fly club were to happen you would not want a tank like that... lolol. 

This tank could go no faster then 10 mph, and can sink very slowly. The tank would sink about -5 alt each second, and when it drives, it would go up 5 alt every second. This slow sink would allow the submarine to easily get away.

How do you like my ideas on how the tank would function?