Help with finding files

Game Modding | Call of Duty: Black Ops 3 | Scripting

Bird_up:

I am currently trying to add custom player models to a zombies map I am working on and I am having trouble with finding these specific files:

mods_character_customization (charactercustomizationtable)

pbt_mp_mercenary (playerbodytype)
pbt_mp_mercenary_body1_skin1 (playerbodystyle)

My apologies if this is something simple that could easily be done. I am new to map making so I don't exactly know the ins and outs of BO3s files