I like it!
Now for my flame bait:
1. Spectators get stuck behind the doors hiding the acid tubes
2. Alien room looks too box-like (like a room that a tyrant sneezed in rather than a room that's been slowly consumed by creep over time). Also the creep texture looks like purple mould when used on large flat surfaces so an irregular room might help with this too?. More stuff (pipes, lights, crates, etc.) emerging from all that creep might give the room more of an "infested" feel to it? Likewise the small passages leading to the hidden tubes might look better rounded as they would be more like the inside of some intestines rather than a rectangular air duct after being slimed up with all that creep.
3. There's a repetitive metallic banging sound about half-way through the narrow vent connecting the bases. You can hear it from the area between the spike pit and centre too.
4. The back door into the alien base is indistinguishable from the walls
answers:
1~ thats an issue with spectator mode. in spectator you are thrown through certain stuff like through doors and 'func_trigger's i fidle with that but can't fix it
2~ with the alien base, im after a new texture i would like someone elses help with that 'cause it wasn't my idea it was an idea in a forum somewhere here and i'll work on making the room out of more patches. i was out of ideas for the 'hidden door'
"the small passages leading to the hidden tubes might look better rounded as they would be more like the inside of some intestines rather than a rectangular air duct after being slimed up with all that creep" ~ thats a good idea but where are you tlking about? where are the hidden tubes?
3~ that banging sound is a door sound but i have no idea where its coming from i checked all the doors and stuff but can't locate where it is.
i answered some of your questions above.
all the nessasary files are in the pk3 file
EDIT/ add/
the alien view thing is buggy as it doesn't look through the hall trap as it should instead it stares at a wall...
when spectator and you 'float' through the trigger for the aciddoors you are thrown into the same spot.
i have no idea how to make sunlight go through the shield onto the arena so that is why its night time.