CSS operates a 20 player 'vanilla' TF2 server at 91.192.208.57:27016.
If any custom maps are ever put on this server, they will be available to download from here. However, they're not.
Direct all server related enquiries to Harker (through IRC).
cp_dustbowl
pl_goldrush
ctf_2fort
ctf_well
cp_badlands
cp_well
cp_gravelpit
cp_granary
tc_hydro