This is a mod made by a Korean mapper. The read me is almost empty. It seems to be a remake of Half-Life! It starts with a tram ride, followed by collecting your hazard suit, then pushing the material into the test chamber and watch things go wrong.
these are few sound files missing... the pk2 picture is also showing a bug in the architecture , with a column not touching the ground...
Any way to fix that bug?
Junk files.