How far do we want the CS's deviate from canon (for those of us with characters who have official character sheets already)? Just a little blurb about what they've been up to for the past six years?
Don't kill Combiner characters off! Not unless it really serves the story. It has to really serve the story. Like really. Like, kill off a Combaticon, that's ok, leave the rest of us alone.
You know what, I'm gonna go totally cliche, and the girl with go with the girl. Gimme Elita One. Oh, and I'll nab Scrapper. I love me some Constructicons and a psychopathic, brilliant, artistic one to boot!