You'll want to compress your maps to .uz2 format which reduces them to about 20% the original as follows from the
server tut part 6.
1) Download a custom map and place it in your maps folder. In my case I downloaded KF-WestLondonNight.rom and placed it in C:\KS1\maps
2) Go to your system folder and make a .bat with the following code:
Code:
ucc compress ..\maps\<mapname.rom>
Mine is:
Code:
ucc compress ..\maps\KF-WestLondonNight.rom
This will compress the map into into a much smaller size and display .uz2 at the end of the map name.
KF-WestLondonNight.rom was compressed from 10.7 MB > 1.78 MB. This will reduce download time and keep bandwidth to a fraction of what it would have been without compression.
3) Go to your map folder and you'll see the compressed map as <mapname.rom.uz2>.
In that link there are also a couple of automatic compression tools if you don't want to manually set the .bat files.
You can use fileden as a free redirect. It has its bandwidth limits but it does allow file hot linking.