I tried out your map and I managed to "complete" it, whitch means i got to the end of an empty corridor. I decompliled your map for studying purposes, to see if you missed out an ending trigger or something, but no, there is clearly nothing at the end. And I notice you don't use any NODRAW, and theres an open skybox.
"Its not meant to be good" Please explain this one. Then this map meant to be look bad? Then you made a pretty good job. Here's why:
Basic blocky shapes, bland look and textures.
You start off in a small room, where you get shot immidietly you load the map.
You are getting swarmed by enemy combines.
No story what so ever, no ending.
Floating combine tower.
With or Without AI? I don't understand, doesn't make any sence to play without AI.
Lights on the lamps are very intense.
"I only want constructive feedback" I don't want to be mean or anything, but this map is bad. Try harder next time and don't relase stuff that is in the early indev alpha stage.