Obsidian:  Although he took his name from a great leader , Optimus Primal never learned the first rule of warfare : Never underestimate your opponent .
Strika: ' Terminate ' . ' Obliterate ' . Can you believe they fell for that ?
Optimus Primal: Whoever you are , you 're being duped into betraying your own people !
Obsidian: On the contrary . I was configured to defend Cybertron . And such has always been my mission .
Optimus Primal: Always ? Who are you ?
Obsidian: I am as I 've always been : Obsidian ! And you remember my consort , Strika .
Rattrap: Oh man . We been dukin ' it out with two of the greatest generals in Cybertronian history !
Optimus Primal: Obsidian , this is treason ! Megatron decimated Cybertron !
Obsidian: Megatron IS Cybertron ! To defend _ one _ is to defend the other . And to betray Megatron is to invite death .