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This can be seen as a sore point for Magnus, too.) He is sometimes Optimus Prime's brother, depending on continuities.
Serving as commander of Autobot City, Ultra Magnus directed the Autobots' counterattack when the city came under attack from Megatron and the Decepticons in the year 2005.
Magnus and Cyclonus acknowledged their mutual, grudging respect for each other as warriors, but vowed that when they met again, it would be as enemies.
Believing he is nothing but a soldier, Ultra Magnus is perfectly willing to sacrifice himself for the greater good if need be.
He knows he's more powerful than the average Autobot, and will throw himself at larger threats accordingly.
He is respected by both the Autobots and Decepticons, due to his courage and self-sacrifice.
His enemies, the Decepticons, respect his courage, but most of all, they fear Ultra Magnus's spirit of self-sacrifice.
He always thinks first of the welfare of his fellow Autobots and his mission.
Dropped into the Sharkticon pit, they were quickly rescued by their fellow Autobots, but the whole team was then set adrift in space when the Quintessons blew up their planet in an attempt to destroy the Autobots.