Trying to find mech and weapon 3D file locations.

So I thought I would try my hand at extracting the 3D files for mechs to convert them to .stl files for 3D printing but so far I haven't seen any of the mech or weapon files. The CookedPCConsole folder has all all the files for decals, terrain, turrets, and basically everything needed for the game except the mechs and weapons. Am I missing something? I don't see how these files could not be somewhere in the steamapps folder. If any of you could point me in the right direction that would be swell.