How the M.U.T.O.('s head) could play a pivotal role in Godzilla vs Kong

Hey everyone, just wanted to share what I think the female M.U.T.O's head(or other body parts) could be used for in GvK.

Option 1: Kong's axe. 

I've heard this theory going around that the axe that kong will use will not be made of bone, but rather a piece of M.U.T.O carapace. I find this unlikely, however, I believe that the "string" thats holding together the axe handle and blade could be made of possibly another part of M.U.T.O anatomy, (assuming that the M.U.T.Os skin has natural resistance to atomic breath), This would explain how kong is able to use the axe as a shield against the atomic breath without the "string" burning off. 

Option 2: Mechagodzilla 

This is mainly going off the assumption that M.U.T.O skin has a natural resistance to atomic breath. That aside, I think that maybe mecha g has a layer of muto exoskeleton either on top of or underneath its' metal hide. This would be useful In protecting vulnerable areas(such as the head or torso region) from Godzillas atomic blasts.

Anyway, do you think the M.U.T.O head(or other parts) will be used in GvK? If so, what for? Comment below :)