Oh and by the looks of it the humans are hunting Transformers because they think theirs are better and therefore by the trailer Ratchet dies, Optimus and Bee get new looks to disguise themselves too. There you have it, Ratchet survived 3 movies protecting humans only to get slaughtered by them in the end. I would have much preferred Lockdown to be the one to end Ratchets life, as a little Animated reference there. I'm also guess Dino and Sideswipe were killed too.