Here are two tank paper models, Core Slasher and Leveler, based on the video game Total Annihilation, the paper model created by TApapercraft. The Slasher is a level 1 missile vehicle that functions primarily as an anti-air unit; it is not particularly well armoured and its weapon doesn't do much damage to ground units, but the range of the weapon allows it to fire from the back line and protect other units from incoming enemy aircraft. Its ARM counterpart is the Samson.
The Slasher provides more AA firepower than a Crasher Kbot. One or two Slashers are capable of defending a large base from aerial assaults. Slashers are also good at defending your moving units from enemy gunships.
The Leveler is a level 1 tank that differs from other tanks; the unit has a short ranged weapon that deals more damage than some level 2 units, but it has very little armour and poor speeds, making it a high risk but high reward type of unit to send into battle. It has no ARM counterpart.
You can download the paper models here: Total Annihilation - Core Slasher and Leveler Free Paper Models Download