I've been away from making mods yeah. but I came back with this simple mod, It's a small thing, but I'm disappointed with BO4 not having campaign and being multiplayer-only game and killing the campaign, whereas BO1 and BO2 had the best campaigns in the series, BO3 wasn't moving on with the events of BO2 but you get it.

Installation (EASY):
Copy the "Mod" folder (recommended to change the folder name to avoid conflicts with other mods) inside ModLoader Folder

Installation (HARD):
Use an IMG editor, open "Player.IMG" file inside GTA SA > models
Find "tshirtheatwht.TXD" and replace it with the one from the mod
Rebuild archive and open the game and REMEMBER THE NUMBERS MASON!