As per the script discussion and song lyrics, there are a total of four tanks to be created. Three of these tanks are defined somewhat, each having a specific feature/style intended to give it some "edge" in its purpose.

Each tank, of course, has its commander and team support, so that will be a part of the design process as well, since the support would be in theme with the tank itself.

Tank 2 - ARMOR PLATES lyrics

My tank!
My tank is fight
My tank!
has armor plates
My tank!
has armor plates
to save me from hate
to save me from hate

Defense! This mechanical monstrosity was built to withstand a lot of abuse, face some level of firepower unshaken, and get to its goal.

That said, let's talk "Tank and Team Support"