I have nothing against standard armor marines getting in he just didn't list the Iron Halos when he signed up or I'd contest it. The iron halo just blatantly spits on the durability rules. If you put an Iron Halo on a sickly child it'd break the durability limit.
Except the iron Halo can be brought down in 5-6 hits from a 3 toner Ork. :/ Hardly not Luke Cage Level.
The benefit of the iron Halo is no Instant death. That is the main point of the iron Halo in the 40K vs. It is simply allow no Instant death shots.
If that was a super power it would be no problem. I see why it is not a problem here and less over hyped than say Master Chiefs Shields.
@diredrill: I really do not care if it is cannon or not. It is a tool to give a idea visually. If I wrote "it can spread out 100 miles radius" then that would be a flat out lie. I know it has a seeming range of 20 feet and showed one of the many Videos of that range. Which is consistent with Dawn of War footage as well the Novels. It is a Super Heated Beam of roughly 20 feet.
I like pretty pictures with my Comics. You want to just read, get a novel.