I've always been a huge fan of the G1 Insecticons and their back story but I've gotta say, I love the FoC explanation for them and the tie-in with WFC that it brings. Didn't even pick up on it until my second playthrough because my first time as Grimlock I was way too excited to have noticed the computer terminals in Shockwave's laboratory. Spoiler It's really cool how they tied them in with the spider creatures in WFC, the Insecticons are subterranean critters that have always been there and are now surfacing to find energon because the core is shutting down. It's cool to think of Cybertron with more indigenous life besides just humanoid robots. Then there's the three Insecticon bots we know and love, they're just "evoloved" versions of the underground creatures. I have to say, it's a bit more thought out than the G1 explanation. Then again, it's not hard to top that, G1 was mostly making it up as they went along. I've not really seen many of the newer cartoons so if they borrowed this premise from somewhere or not I don't know. No matter the source, I like it.