Thanks for the feedback, glad to hear people enjoyed it!
I'll review the use of 1 vs R linedefs - I thought I'd got these setup correctly (there are a couple of places where the player is supposed to get locked in rooms etc. so some doors are intended not to activate but there may be a few places where I've let something slip through!
Same with the missing textures and stuck monsters - thanks for letting me know, I'll see if I can fix these up for a revised version of the map. Annoyingly I don't seem to be able to recreate the texture glitch from your screenshot Baron, but I'll take another look at that area and see if I can work out what is going on!
And thanks for the links regarding changes the level names Turbulent, hopefully I can get a handle on that!