How to get DLC working in Xenia (works for every game)

Описание

Things you'll need -
wxPirs http://gael360.free.fr/wxPirs.php
This should show people how to get any and all DLC working in Halo 3, and Reach as of Nov. 30th 2018 (along with any game that has DLC actually, but some games also require you to copy the files directly to the game folder as well, like Halo 3 as of right now. Some games DLC's don't work at all though, like Halo 4's. This is just a video showing people how to get it working when it does eventually start working)
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Note: This only works with extracted games, ISO's don't work. Use Velocity to extract the game to a default.xex format if you want it to work properly.

Make sure you copy the exact setup I have with Xenia for the game Reach, otherwise you could possibly run into issues.

So far only map packs seem to work, any cosmetic DLC like red flames still don't work as far as I've seen so far.

Thanks to 0xDEADBEEF video, I was able to figure out how to do any of this at all. Here's a link to that video:
https://www.youtube.com/watch?v=I3AMJ34Fcbw