Yes he was their leader beofre Optimus Prime was.
In transformers 3 an autobot dies. That autobot is ironhide. He gets shot right in the spark by a long lost autobot who turned bad named sentinal PRIME!
Sentinal Prime
the autobot that turns into a bad guy in transformers 3
His arm gets cut off by Sentinal in the battle if Chicago
Yes sentinal prime killed him because he made a deal with megatron
Yes he gets killed by sentinal prime. Hoped this helped
Sentinal prime comes to life because, optimus prime uses the matrix of leadership to bring him to life.
Depends on if you ae talking about a series, a specific episode or movie. My son says that in Transformers 3 there is 2 primes active : Optimus Prime and Sentinal Prime.
Optimus prime, Ironhide, Sideswipe, Mirage, Ratchet, Bumblebee, Wheeljack, Leadfoot, Topspin, Roadbuster, Brains, Wheelie, and Sentinal prime (but turns decipticon)
sentinel prime was the auto-bots first leader before optimus prime. sentinel was was slain by optimus prime because sentinel prime believed they could not win so he teamed up with the decepticons in transformers 3
sentinal prime kills ironhide using cosmic rust and a group of unnamed decepticons, soundwave, and baricade kill que/Wheeljack
the only autobot thats dies is ironhide. :(