The energy balls are identical to the ones fired by the Overwatch Rifle I believe, so if you had them in the map it would be nuts and a little beyond unbalancing if you know what I mean!

Very nice, the atmosphere is nice

The rocks look plain and boring. Displacorize them! And yer if you could use those energy balls that appear all the time in the generators that would be cool- like Men In Black with that little ball thing!
You should do something with spinkee cameras all over the place, maybe even a typical "death room". The kinda room that has a spinkee weapon in it, but make it so that in a control room you can lock the doors and activate loads of gun turrets in the room

They have cunning clipping going on to stop people getting stuck, don't worry. And in the screens the rock does look a bit crap, I will sort that out, but in game you can see the dismaps better

And yeah, there is a problem with throwable physics objects, but I've got around that by using some Combine robotic enemies (e.g. scanners, roller mines and land mines). I'm not sure how much damage the energy balls would cause in DM, and if you can manipulate them with a normal grav gun, but I'll also look into that one if I can figure it out...

No one likes being forced to stay in the center of a doorway, in a DM frag it could get you killed bumping into a door facing. redesign the triangle doors so they are not so narrow.

otherwise, i love the atmosphere, it fairly drips off the monitor.

Looks pretty, rock ceiling is a bit HL1-ish tho', maybe stick in a few stalactites(?), section of rock dropped out of the ceiling etc. to make it more interesting. Its almost tempted me to start mapping for HL2

Lol, or you could opt for the funnnier way, and throw the people.

You would throw the yellow glowy things of course! They have the added bonus of requiring some skill to hit someone with.

It looks pretty cool already, but I'm rather curious about what physics objects you'll have in there to throw around. It didn't seem to me that there was much Combine stuff you could toss without the super grav gun... unless you have some sort of fiendish/foolish plan to not allow use of the gravity gun at all...

DOOD!!!!!

I LOVE THE TRIANGLE DOOR MAN!!!!!!!

does it have triangle slidy doors to go with the doorway?