Hey, I found out how to edit my models a while ago (And I have known how to make/edit stuff in 3DS Max for a while) and someone asked if its possible. It is.
WARNING : YOU CAN DO THIS IF YOU JUST WANT TO MESS AROUND BUT I ADVISE ONLY PEOPLE WHO HAVE HAD PREVIOUS EXPERIENCE WITH 3DS MAX SHOULD USE IT.
Anyway, heres what you do.
1. Download 3DS MAX (Cant be bothered to find a link. Google it and you can get a trial DL or if you are one of those super cool underground people you can go get the full thing somewhere)
2. Extract your Files. Same as model changing....Make your folders in WoW/Data and extract the files you want to edit.
3. Download this script used for importing .m2 files into 3DS MAX and put it in your 3DS Max/Scripts folder.
Download Here
4. Open up 3DS MAX
5. Go to MAXSCRIPTS (Should be a dropdown menu somewhere along the top)
6. Open up WoWM2Import.ms
7. Look for a line like this (Should be at the top)
8. Replace "c:\\tmp\\BoneGolem.m2" with the exact path of the M2 you want to edit.Code:eg. -- GLOBALS AND STRUCTURES global filename = "c:\\tmp\\BoneGolem.m2"
9. Go to file and click "Evaluate All"
10. Only click evaluate all ONCE...The model appears really small so you just need to zoom in alot.
11. Enjoy, I have made alot of cool customised models using this.