Kat (
Halo Reach - Noble 2 - Kat - Catherine-B320 - Mark 5 armor set including Helmet by moesizzlac) has an almost identical chest piece with the exception of the lower middle front section.
Identical, however there are differences that make Kat's chest not fitting properly for me. I've scaled both the Kat chest and the pepakura chest I found and compared the differences. (Layered on top is both of the chests clipping though each other, displaying in the same spot)
Back of the chest:
Layered on top------Kat------------Pepakura
Front of the chest:
Layered on top------Kat------------Pepakura
Side of the chest:
Layered on top------Kat------------Pepakura
And here's the main issue for the back of the chest:
Layered on top------Kat------------Pepakura
And now the main issue for the front of the chest:
Layered on top------Kat------------Pepakura
The big thing, is the sides of the Kat chest cut into my body, and if I make the chest wider it appears way too big. That's the same issue with the front and back of the chest, because if I try to add the bottom part for the front of the chest, I'll have to extend the chest a bit further making it look incorrect. Trying to use the male chest just is not really an optimal fitting.
But the main issue right now, is that it looks as if the Male chest somehow got mixed in and replaced the female chest, because the pdo file in the the armory for the female Mk V appears to be the male chest, as well as your thingyverse files for Kat