Metal Gear Solid 2 Substance model patch?

[InfamousKnight]

So I wanted to put some kingdom hearts models into metal gear solid substance but I don't know how I can do it. What could search on google? I searched metal gear solid 2 substance mod guide but couldn't find anything. However, I just looked at the top results. But still, the ONLY patch I found was some patch for people that have a higher graphics driver.. I have some idea on how I'm supposed to do this. Like you need to have the exact same filename as the original.

I've already found some kingdom hearts models online but I still don't have the game up and running since I have to burn the iso file still. So could anyone help? I found some files in the stage folder but there's so many files idk what to manipulate. Character design really throws me off.

[RetroHelix]

I would search over at xentax for more information and in case there comes nothing up that helps you I would ask google the following: Metal Gear Solid 2 model extraction