This is probably why I don't Gundam: looking at that stack, the ones jumping out at me are the lady with the round shields on her shoulders, and that gray Guntank looking guy that looks more like an Armored Core. X]
It looks like a Guntank for the very logical reason that it is a Guntank.
As much as I appreciate the usual parade of GMs and monoeyes, I'd like more designs like it and the Origins Mobile Worker. You know, more of a grounded, clunky look than the humanoid proportions of even the first Zakus.