Quantum Ascendant MurderDome Gladiator
Tank was constructed with two programs—save humans and follow orders. His early attempts were fraught with failure—several missions were aborted because his orders conflicted with his primary programming. Since then Tank has become increasingly riddled with logical flaws, and his programming is now fundamentally corrupted.
Tank is Quantum Ascendant, but has a solid metal shell and speaks in a grating, mechanical voice. His nanobot auto-repair system has actually evolved over time. Where once they could repair damage in a day, they now perform the same task in minutes to keep Tank at full fighting effectiveness.
He isn’t much of a conversationalist, but stick him in a fight and he’s a happy robot—as happy as a robot with no emotions can be, that is.