Why didn't Izumi just use his super human strength w/ the suit to jump when they were trying to pin him down. He could have just done that and then owned them after breaking free.
This situation is actually the first time Izumi showed how he's a veteran of Gantz's world, with how he expertly used all the weapons and tools he had in hand along with how he maximized the features of his suits when he could. If there will be a lot more of these assholes to deal with, I might just warm up to him eventually.