Well, one weapon with enough juice to waste Ansom. Let's remember that he is a pretty strong guy in his own right. Not to mention for all the flash of the AA weapons Wanda let loose against Jillian's crew, they didn't take down that many people. An archon and a few others, when Jill left GK she still had a decent number of flyers at her command, seemingly not much the worse for wear. So with the guy who is, quite possibly, the RCC's heaviest hitter coming over the wall, they'd probably need something that packed quite a punch to take him down.