I checked and that's the only problem. Also, a suggestion... Use Grunt, Sarge or Major as basic bots if you'd like to be cross-game. They're the only bots which both games contain...
Gameplay review:
You said it's your first one. Pretty good start. I started with -2, actually, then I got blasted by a BFG... by my custom Brawl bot, who is stupid. Ah, never mind, he had enough time to get that BFG while I didn't find out that that hole isn't an eye-candy...
The Regen's idea is good and I consider this map as a nice King of the Hill. Although some places should be lighter, for example, the Regen room and the teleporter exit, oh, and I think you should change the BFG to Nailgun or something, because it seems a bit unbalanced for me... (I think this map would be just a race for the BFG).
And an interesting addition: Bots didn't find the Regen-hole in the wall...
Keep up.
EDIT: 2nd play additions. You put that elevator and that room you showed on the third screenshot to a great place. It took me almost the entire game to find it.
And nice to have a Machinegun spawning point