Forget XML2 Sentinels. They're mapped with greater care (i.e. per-finger anims, not "thumb and the rest" like MUA's) and are of a significantly larger scale with no auto-scaling. Dang.
New stuff:

Left to right: Hellfire Club Minion, Lab Tech Female, Lab Tech Male.

Secret Ninja Enemies!

Genoshan Prisoners, Female (!) and Male, AFAIK

Archive:
http://h1.ripway.com/ivank/XML2/XML2Baddies4.rar(includes all the above, plus all five Sentinels -- no preview due to the differentiated mapping. They CAN be used as reskins of, say, Ultimo, Arcade's Big Bot or Destroyer though

)
Offsets:
HellfireClub.igb,-DXT3,256,256,36339,128,128,101875,64,64,29427,32,32,28403,16,16,22635,8,8,22555.
LabTechF.igb,-DXT3,256,256,82619,128,128,49707,64,64,69331,32,32,35015,16,16,36119,8,8,36375,4,4,36455.
LabTechM.igb,-DXT3,256,256,49123,128,128,129199,64,64,27299,32,32,31395,16,16,32515,8,8,32435,4,4,32771.
Ninja1.igb,-DXT3,256,256,60103,128,128,43719,64,64,15179,32,32,142811,16,16,14843,8,8,15099.
PrisonerF.igb,-DXT3,256,256,66911,128,128,39939,64,64,26235,32,32,22231,16,16,66655,8,8,172563,4,4,172435.
PrisonerM.igb,-DXT3,256,256,62407,128,128,127943,64,64,16887,32,32,20999,16,16,16631,8,8,16551,4,4,20983.
Sentinel1.igb,-DXT3,256,256,80149,128,128,53005,64,64,30417,32,32,34625,16,16,40369,8,8,34561.
The Sentinels and Ninjas are multiskinned, obviously

That takes care of character codes 93, 102, 111, 112, 118 and 119. Whee! Next stop: more soljers!

Plus, you get into even more copyright quandraries if you use other peoples geometry without permission, if Acclaim/Raven/Beenox/Whomever wanted us playing with their models they would have released the Max files.
You mean Activision? Acclaim's long dead, AFAIK, and bears no relation to any MARVEL games

But on topic -- I will look into the geometry formatting of the various platform versions. They're all compatible with the PC, but have different sizes. Chances are, each has their own format. The differences might tell me new facts about the IGB principles.
Also, it would be prudent to compare the MAX files you convert into IGBs via the Alchemy Pluck-In to the resulting IGBs, maybe something can be gleaned from that. I am not familiar with the inner workings of MAX's format, so I can't really tell you anything further
