Yes Guardian Supreme fired upon the human tanks. Just because they are human doesn't mean he will stop trying to kill them. He was trained to defend Autobots from all threats and anything that is not an Autobot is always classified as a threat until a superior tells him different. Right now the only superior he answers to is Optimus Prime and before that only the Council of Elders.

Pathfinder in my last post I clearly stated that when Guardian left all the cons in the area were dead or moments from death. So that leads me to believe Bulwark is insane and imagining Cons that are not there or you failed to understand my post. I am going to assume the former because that is more interesting.

Quake is an NPC. I don't care what happens to him. The Elena character needed a Decepticon to attack & I wanted a Decepticon who was a tank just for the purpose of having a tank mow over people because it looks awesome. Quake was the first one I found.