My god, I had a bad impression of ChaosEsque just from the ridiculous size of
the download, but actually seeing this up close? This has to be the most
confusing mess of a data directory I've ever seen.
I honestly can't tell what the purpose of each of your archives is. One of
the biggest ones is
"zzzzzz999999_xmod-chaos-esque-xonotic-full_source_and_exec_binaries", and it
almost entirely, size-wise, consists of textures. Lots and lots of textures.
The same applies to the rest of them. You're using tons of texture files.
That's all of of your space, basically: texture files. I don't even know if
they're compressed, because for some reason you're using the TGA and
DirectDraw Surface formats.
So, please:
* Organize your data! Give your data files meaningful names. You're throwing
crap all over the place, and I can't reasonably tell without experimentation
what effect removing a given file will have.
* If you must include so many huge texture files, compress them. With lossy
compression, if you must.
* If the texture files are used only on particular maps, distribute the maps
separately.
* If there is any duplication at all, get rid of it.
I think you can easily get your download below 500 MB if you just put a tiny
bit of effort into it. Of course, you aren't going to do it, because as
you've said before, you don't care, despite the fact that you're willing to
rudely bump your topic about it shouting at people to play it, long before
anyone could have even possibly done so.