Imperial Rig Shokew!
The old section lists it under the registry number ZM-S22G, with ZM-S22SC as an alternative. So now that it's shown up in Build Fighters Try, it's be re-listed as just ZM-S22G.
In terms of the naming conventions, that G would imply it's a suit built for use on Earth, which is peculiar if it's just a Rig Shokew with some extra weapons attached. Even more so when it's primarily shown operating in space. The V Gundam website lists it as just ZM-S22S like the base unit. MS Illustrated, when it even includes it, doesn't give it a registry. At least one guidebook (Newtype 100% Collecton) lists it as
ZM-S22SC, which would resemble the relationship between the Zolo (ZM-S08G) and Zolo Kai (ZM-S08GC) for minor customizations.
My suspicion is that the S22G stems from an error in the Dengeki Entertainment Bible, which
inconsistently calls the base Rig Shokew S22S in the color portion in the front, and then later S22G in the lineart in the back. That looks to stem from it being placed alongside the Shokew in the first volume, and someone carrying over the G from that.
On another note, the armaments!
The profile on both the
website and in the aforementioned Newtype 100% lists three beam string emitters, which are shown to be in the head and both feet (both in the show and in
this lineart). The listing also differs from the Zoloat in that it reads ビーム・ストリングス×3 (beam strings x 3) rather than the Zoloat's 5連ビーム・ストリング (5 barrel beam string). So it's not so much three barrels as three separate emitters.
The beam sabers are stored in the hips, in racks pointing down, as shown
here.
The
shield is interesting. It's listed as 大型シールド(ビーム・シールド兼用、ビーム・ガン×2内蔵). Aside from this mentioning the two built in beam-guns, it also mentions a (combined? combination?) beam shield. The arm beam shield is listed separately, so it's not entirely clear to me what this refers to.
I will note the structure of the upper, shoulder-docking portion
resembles very much that of the Zoloat's shoulder beam shield, and if it did produce from that point, it'd almost exactly mirror the solid shield in coverage on the opposing side. But that's entirely conjecture on my part.