I think I might just give this a shot. I tried one run, made it to 11 in thirteen minutes but spawned near some mancubi and barons, ran toward the red stairs but it was mortuary and I couldn't make it to the normal stairs instead. I think I could have killed the Cyberdemon, but that depends upon whether a nanopack works on a double shotgun like I think it does. Oct 1st plenty enough time to conjure up a good run.
Do partial victories count as wins for these challenges?