I don't know which was more heartbreaking for me: seeing Cyclonus coming apart at the seams because he's unable to part ways with Tailgate, or Kaput going kaput at the hands of Fangry offscreen... The latter I think, since it follows a similar pattern to Trailbreaker's death. We've got a character who has the potential to make the in-story world just a little bit better ("You're wasted as Director of Security." "Yeah, but I used to just be wasted.") killed off and taken out of the story too soon ("...please, just put down his brain"). In all likelihood, Kaput's death won't impact IDW's continuity in any big way, but just the knowledge that a professional like him will never be able to do the Spark-related research that he was so eager to is a big downer.