~Shrugs~ I'm not arrogant. I'm just experienced and brutally honest.
Odin let me address your comments in order:
1) Fix the issues inside before expanding the gameplay area. To fix say the back corridor which I did indeed miss (and I stand by the thought there's only one USIBLE route as that corridor is a narrow deathtrap for anything larger than a basilisk) so that it's not a deathtrap for larger aliens.
2) I omit ATCS because the gameplay works. Battlezone does not compare to it even slightly. Maybe if you had a Z-axis comparible to UTCS you could compare your map to ATCS like it can....but since it does not I don't feel like utterly humiliating your ass by pointing out what atcs did right and where you tripped up and did a face plant.
3) Yup I missed the middle room, go figure considering the doors were using the same wall texture as the opposite wall. I don't generally press up against a wall to inspect it.
4) Indeed you don't have to answer questions. As for no reason? LEts see a general disregard to gameplay BEFORE you map isn't a reason? I mean it's one of a mappers fundemental considerations before you even open GTK or Quark or whatever. Is like designing and building a stadium before knowing your client wanted a house. It's alot of work and effort which will just get torn down afterwards. More on this latter.
5) If you were using as ATCS as a guide post you could compare what it does right against your map. For example, compare your bases with ATCS. What makes ATCS bases hard to attack, defend, navigate. What advantages does it possess, what disadvantages does it impose, does the bases feel cramped or too spacious, will defenses be centralized or spread thin? These questions are ones that others can answer but in truth as the mapper it's up to you to impose the difficulties.
6) Seems gareth, vcx and megabyte also posted negative criticisms and all of us in our own way have tried to help. Mine are less forgiving. Get use to it or not. All seem to think your map looks nice....but the gameplay needs work.
7) Considering megabyte puts ALL betas up on the derelict server it's not a pat on the back, it's a generous service megabyte thankfully provides the community. And considering you choose to ignore the more negative comments that don't include high praise it's enough proof you're looking for pats on the back dude.

Yep I'm an asshole. LEast I'm an honest one.
9) There's a difference between a beta and a test map. Beta is an honest try at making something that fits the game its for....a test is something cobbled together then made to fit later. Like you have expressed battlezone to be. You want play tests to dictate gameplay....but in your overall design of the map gameplay should have been the first priority in the maps layout. Hence why I classify three/four rooms stuffed into a pk3 and called a map not a beta, I compare it more on par with a mapping tutorial test map trying to be crammed into a mold it's really not suited for. Look over mapping tutorials and compare against your map. One room, connected to a second 'room', connected to a mirrored copy of the first room connected by a narrow tunnel. Sounds like 90% of the mapping tutorials conducted on 'How to Connect rooms'.
10) I'm sorry you feel it's an insult, then again considering you consider me an asshole I'm not really broken up over it.
11) Tremulous community mature? Dude the first week of release tremulous had more griefers than the quake 3 source release did. Lvl is THE map review site for quake engine games. Trust me if you think they lack maturity over there and don't set a certain standards for maps you are the one lacking maturity in the fact you can't handle failure. As for understanding, I understand fine. All mappers begin somehwere but there's a difference between some mappers than others. Some mappers have only friends that kiss as much ass as possible, regardless if the map sucks worse than a two cent whore they'll tell the guy what he hopes to hear...and he'll go on making shitty maps. Then there are those that are nitpicked to death. The SLIGHTEST texture mis alignment is treated as the greatest crime against a map. These are the authors that produce truely astounding maps in time because they don't settle on what is 'nice', they achieve the best they can produce. Which do you want to be?
12) Yes you wanted it the same I understand that however it's an empty floor below an equally empty floor. As megabyte mentioned detail brushes never hurts.
13) Yes but you can get a general idea of how people will play your map from watching how they respond to varying situations. For example: the typical human will do which of the following given a long corridor with no cover:
a) Rush ahead towards the alien rushing towards him
b) sit his ass at his end of the corridor and pick off the alien as it heads to him
IF you answer A you haven't played Trem nearly enough to udnerstand the typical community member nor its gameplay.
14) My ap[ologies I did check and yes there is two, however as mentioned above I still only consider the map having one usible route, see the secondary route is this long corridor that is large enough to fit ONE larger alien at a time. At S3 I could sit my battery packed arse at one end of the blue corridor and just farm the goons, marauders and tyrants that stupidly tried to use that deathtrap. First off lets comparee atcs to battlezone. ATCS secondary route is a twisting passage that allowed for ducking behind a corner and never really a straight shot of any big distance, similarly 2-3 tyrants could maneuver around each other in the area with minimal clipping. Battlezone is three long tight corridors that fit one tyrant at a time. See the problem?
15) good for you.
16) Because I know what it's like to get a bad reputation for crappy maps. I releasted literal peices of shit that I wish I had not. For example ask any gloomer what they thought of Crisis at Ice Station 8. Yup it had a fan base of people that enjoyed it but as a whole it poorly handled its games gameplay. Like any failure it can haunt you and really suck the fun out of mapping.
17) Well perhaps they'll see something that I have not cause given the layout of the map as it is I can see how many games will go. Is like ATCS, if grangers don't tube the ramp do you think humans won't saw rush the om? Of course they will. Give humans a long unobstructed corridor and I really can't see how the typical player on't just sit at their open doors picking off aliens that try to cross that wide open space.
Again, take these opinions as you will. I don't say it's crap cause I don't like its look. In its current rendition knowing the community that I play with battlezone would just be a campfest hence in the community I'm most familiar with it would play like crap. It needs cover for that primary route and the back route needs serious expanding. The bases need serious personality improvements. You might discover otherwise with other players but you'll have to forgive me for not sugar coating things for you, I tell things as I see them, again if that makes me an asshole so be it, least I'm honest.