[HELP] What M9 Files I use to mod?

[-Viper]

So I was thinking about modding and I extracted my M9 files, after that there were a TON of M9 files. I don't know which ones to mod so if you guys can help me out that would be awesome : )
I will release the mod if I can get the right mod files!

[Gaz]

The ANIBASE or ANI_G

Good luck with your mod.

[-Viper]

I just change that? I thought I need other files like the CM_HND_NM_CP_M9_CH (For Example)