A friend of mine found the "Epic Tunnel Clash" set at a TRU in Cleveland and snagged three of them for me. So, keep your eye out. They're $25 each though with an unposeable "Happy Clapping" Hulk. So, I paid $75 for nine Steel Brigade figures with accessories. For ARAH-compatible product though, it was worth it.
The helmet is glued on to a regular figure's head that's been molded in gray, so the helmets can be a little askew. Overall, I really like these guys and I've turned my R.O.C.C. into a Steel Brigade command center. Now, I just need to get the Club Steel Brigade Command 3-pack.
Anyone want a "Happy Clapping" Hulk?

Also, there's an Abomination/Emil Blonsky "Pretenders" two-pack that uses a regular Emil Blonsky figure. Why they couldn't do with with the Edward Norton figure is beyond me.