I'm always a bit wary when it comes to realism attempts within Quake - they don't do well most of the time. That said, I dig Null Bearing. The port / docks setup is just a moderately detailed backdrop and the brushwork itself is still tailored around the usual Quake gunplay, not vice-versa as in most of the so-called realistic levels. I liked the explorative feel that comes with the overlapping path the player follows. Mixed texturing is also tastily done. Nearly an hour long with 350 enemies on skill 2, yet it does not get boring at all.
Thanks for the adventure!
Three part first-run demo
QS 0.93.2 / protocol 666.
58 mins : 9/13 secrets : 340/347 kills.