Utterly Mad

I don't quite know why (other than my newfound fascination with tanks and armor).

But now I have an obsession with designing and building a fully-functioning model tank solely for use in an airsoft game.

I have very basic ideas for the subsystems of the tank itself--like the main gun, the turret, the potential chassis--but I still have to come up with "how" methods on actually acquiring the parts and materials I'd need to make it into a usable plan, and then working out said plan to fit within at least a dozen different design constraints (most importantly limiting size and speed) to be able to actually construct the plans into a functioning prototype.