You should just need the mod tools as the bare minimum. However, the UGX tools make just about everything a billion times easier and quicker.
Let's get started:
The UGX Script Placer is pretty much a map and mod setup. I highly recommend using this tool and you're gonna wanna run this for the first time setup of your mod.
The UGX Map Manager lets you download specific maps from UGX. Completely optional.
The UGX Installation Creator packs your mod into a .exe for easy installing. Optional but recommended. You'll want to do this when your mod is complete.
The UGX Alias Editor lets you edit soundalias.csv files. Very helpful if you're doing anything with sounds because editing aliases is a major pain in the ***. Completely optional but heavily recommended.
The UGX Asset Counter counts how many assets are loaded. Useful if you hit limits a lot or if you're worried about limits. Completely optional but recommended.
[
App] CoD Project Mover v1.2 is pretty much a project mover... I've only had to use it twice but was very handy when I did. Completely optional
The UGX Weapons Editor++ is AN ABSOLUTE UNIT OF A PROGRAM! An absolute necessity if you do any type of weapon modding. Completely necessary.
That's about it. Happy modding!