Since newer versions of GZDoom and LZDoom removed the old JDoom method of using high resolution textures, a lot of these texture packages don't work anymore. It's an easy fix tbh but I can't really find any updated versions. So here is one I found with a lot of high res textures for Ultimate Doom, Doom II, Plutonia and TNT. I simply moved the textures into the right folder and now you can use them with modern GZDoom ports.
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