Included in this package are 800+ (!) textures from various Marathon games. The textures from Infinity and 2 were taken from Tim Vogel's TTEP 6.0 which is freely available here: http://orbitalarm.bungie.org/downloads/textures.html
(TTEP 7 can be found here: http://www.simplici7y.com/items?search=ttep)
The textures from Rubicon can be found with the rest of the game here: http://www.marathonrubicon.com/
To install, drop the "mtk" folder into your sauerbraten packages folder. While in the game, run one of the cfg files (ex.: "exec packages/mtk/infinity_hi_water.cfg"). Note: If you run load_all_textures.cfg with all the default textures, your texture browser will tweak out. I tried to find the cfg for that menu but failed...
If you actually use these textures in a map, I strongly recommend making your own cfg file that points to the actual textures instead of the cfg files included. I say you should do this because this package is far from complete and I'll probably end up changing the cfgs sometime in the future.
In the future, you should expect these additions:
Marathon 1 textures
Tempus Irae textures
TTEP 7.0 textures (I have to convert them all from dds and resize them to get them to work)
Original 128x128 textures from the original games, not the remade textures (I like the originals WAY better)
Textures from other mods, possibly Marathon RED?
cfgs that have working glowmaps/animated textures
What is this "Marathon" game I speak of? It's what Bungie did many years before their famous Halo title. You can get a free, open source version here: http://source.bungie.org/get/
Apparantly the PHP uploader craps out after 10.5 mb. Thus, it's impossible for me to upload the file directly to quadropolis.
Here's some links to the file on various websites, seeing as how people like certain websites but don't like others and I'm not telepathic: