Had to recompile game to get bots. Notice that vm directory needs to
be zipped up as qvm-1.1.1.pk4, and new game.qvm must be copied to ~/.tremulous/base/vm.
I had a problem where the game complained
/dev/dsp: Input/output error Could not mmap /dev/dsp" message
Fixed by doing
echo "et.x86 0 0 direct" > /proc/asound/card0/pcm0p/oss
as root.