Actually came out a little cleaner than Wrk's gigapixel upscale with better handling of gradiants, (though that was an older version at the time). Works nice with General Tacticus's Weaps and Tim Vogel's Wall sets.
So you know as of v.5, you left some png files in folder 9/3
This is a Collection of Texture upscales for Marathon, all textures have been upscaled by a factor of 4 with the intention to keep as much detail as possible.
This is a little weekend project that ended up taking a few more days than planned, please be aware that some textures still need some work but in general im happy with the current quality of most textures.
Enjoy!