I honestly have no idea how that happened, two textures are used for each sub, a "conning" and a "structure". The only files in the texture library with camo c is:
Conning_7B_00_camo_c.dds
Conning_7C_02_camo_c.dds
Anyway, this mod can enable the camouflages shown in the camo overview image (first post), beyond that, it's developer-/no mans land.