Troop Vehicle: THE CATAPULT & Programmable Teslas
What if we could build a vehicle that couldn't attack on it's own but you could drop it and then spawn troops onto it. I was thinking of a catapult that could launch troops through the air. You could launch several light troops such as goblins at once or just one giant or two giants at a time. There could be a very fast moving tap gauge like you find in old golf games to set the distance of the launch and the launch. So you could attempt to launch troops over a wall to a certain section. Perhaps the launch gauge could only be set once per attack so you only get one chance during the attack to set the vaulting distance the you want. This vehicle could be like a hero that regenerates itself after a time break. Finally, with upgrades the catapult could launch more troops at a time or further distances.
Also I think it would be good if we could program hidden Teslas to only be triggered by troops that we set. So I might program them to only pop up if goblins come within range or something like that. Actually this might even be a better idea for the spring traps... Weight specific spring traps so goblins or barbs don't set them off.