Agamemno Contingency, file code name: Shapeshifter
Optimus Prime is the leader of the Autonomous Robotic Organisms of the planet Cybertron. Like all members of his species, he’s a robot with human levels of feeling and sentience, capable of transforming from a bipedal robot mode to a more compact alternate mode. His main fuel source is a crystal (Energon) that can be turned into a liquid state for drinking. The crystals put out a lot of radiation. Too much Energon radiation will cause him to short out after half an hour in robot mode. The higher the Energon radiation, the shorter his time in robot mode. He is also young, thus prone to impulsive behaviors. Incapacitating him will require increasing the Energon radiation in his immediate vicinity to keep him in alt-mode and a prolonged fight will cause him to lose focus.