I wonder, the 'cons were really taken down so easily because of one thing. It's because all of their weapons were handheld, therefore, they could easily drop or loose them. Soundwave's gun- handheld. He lost it right as Bumblebee was about to kill him. (You can see it fly out of his grasp) Megatron's "shotgun"- handheld He dropped it as Optimus drove the ax through his chest. He attempts to lead it, but fails. Barricade's blaster- handheld We don't see him loose it, but it's obvious at one point he did. Most likely when the humans were hitting him with the bullets and all. Sentinel (Wouldn't count him as a 'con, but you get what I mean) His Cosmic Rust cannon was handheld, and when he was hit with the RPG, it flew out of his grasp, too. He could of used it againts Optimus. His war-shield and Primax Blade, also. He lost his Primax Blade over the side of the bridge (When Megatron flung him into it), and his War-shield was dropped. So I have to say, having handheld weapons... bad idea.