We’ve previously shown a video guide to texture modding MH3, hidden away in an earlier post, but my interest has been rekindled by aid of Mr.T and his textures. I made an XML for the game, but it’s currently flawed, so won’t be published until it’s fixed (like a bunch of other stuff here :s).
Meanwhile, here are a few great guides for modifying the game. The first two, for modding textures, need translating (I recommend using Google Chrome which does this automatically).
Texture Modding Guide 1: Brief guide, but contains a complete list of monsters and their folder locations.
Texture Modding Guide 2: Very detailed guide with images. The monster names aren’t their English names, so you’re better off using the other guide as a reference.
Texture Modding Video Guide: Gives a good idea of how to make your own quality textures and how to replace files on an ISO.
Hex Editing Guide: FANTASTIC guide with instructions on modding quests, and plenty of other info on the disc’s contents.
Ceadus Online/Riivolution Guide: The place to go if you want to know how to use Riivolution with MH3. Download the riivolution pack supplied and check out the XML (with Notepad++) for more information.