Probably not many people know of this but there's another map included with this alpha besides the other 5.
Just type in "map empty" and it loads up a big empty room that looks like a holodeck from Star Trek. It's a good place to spawn enemies and lights without having a massive frame rate hit from the other levels.
Here's some binds to help you load up the lights and monsters in that level. Just copy and paste them into a cfg file and exec that cfg file when you start up the game. Edit the keys to your liking if you don't like them.
//LIGHTS
bind h "testlight lights/floorvent02"
bind i "testlight lights/floorvent01x"
bind u "testlight lights/flashlight3blue"
bind k "testlight lights/duolight01"
bind j "testlight lights/spot01drk"
bind b "testlight"
bind n "poplight" //this removes the last light created
bind , "testlight lights/blamplight"
bind . "testlight lights/brucedemo2"
bind / "testlight lights/duolight01"
bind l "testlight lights/floorgrate"
bind ; "testlight lights/floorvent01"
bind ' "testlight lights/floorvent01x"
bind p "testlight lights/grate4"
bind [ "testlight lights/mlight01"
bind ] "testlight lights/spot01drk"
bind \ "testlight lights/squarelight1"
//Monsters
bind KP_END "spawn monster_zombie_fat2"
bind KP_DOWNARROW "spawn monster_zombie_fat_ragdol
l"
bind KP_PGDN "spawn monster_zombie_commando_c
gun"
bind F1 "spawn monster_zombie_fat"
bind F2 "spawn monster_zombie_commando"
bind F3 "spawn monster_demon_pinky"
bind F4 "spawn monster_demon_imp"
bind F5 "spawn monster_demon_hellknight"
bind F6 "spawn monster_zombie_maint"
bind F7 "spawn char_scientist1"
bind BACKSPACE "reloadimages; reloadshaders; reloadmodels"
bind F9 "god"
bind F10 "noclip"
bind F11 "notarget"
bind F12 "give ammo"
bind * "screenshot"
bind PAUSE "pause"
bind - "spawn weapon_shotgun"
bind = "spawn weapon_machinegun"
Ale na moim celeronku wyciagnalem... 10fps

No ale to pod win2000, moze pod win98 wyciagneloby te 15fps
