ofhop.game.nfoservers.com:27015
I run all of the classic HLDM maps converted on my server and even a few that came with the PCGamer update for Half-Life converted by yours truly for Opposing Force! Rustmill being one of them <3. Here's (some of) the server rotation (without mapvoting). I have like 50 maps in my rotation so... I can't post them all here.
op4_subtransitP.S.: I DO NOT have the accelerator on the server, unfortunately. So, I guess you overseas guys may have to try your luck on the server, but I'm not guaranteeing that you'll get the best of ping. If people are willing to donate, however, then I'll have to reconsider. As it stands now, sorry (overseas) guys.
op4_treatment
op4_outpost
op4ctf_biodomes
op4_rubble
op4ctf_chasm
op4_disposal
op4ctf_crash
op4_kndyone
op4ctf_dam
op4_meanie
op4ctf_gunyard
op4_demise
op4ctf_mortar
op4_repent
op4ctf_repent
op4_bootcamp
op4ctf_wonderland
op4_datacore
op4_gasworks
Hope to see you guys at the server sometime!