use packages.debian.org/sid/warzone2100 - i would have compiled it from source but have a flex bug. You might need a few of the dependences like libopenal.
There's no music in this beta port but that's Debian being cautious about the license issues. I see no mention about where that can be obtained from in the readme.
Beta 2.1 tips in Ubuntu 8.04
Re: Beta 2.1 tips in Ubuntu 8.04
viewtopic.php?f=6&t=1818
2. Everything included (source code and data), as well as the not included videos and music, is released under the terms of the GNU General Public License, version 2 or (at your option) any later version.
We all have the same heaven, but not the same horizon.