added marker for tele exits

fixed that one non-solid brush where you could fall into eternity

fixed that one teleporter

tidied up the lift a bit with sounds more consistent with q3a as well

reworked the elevator and speeded up the music and lift. Added some helpful clippings and made many lights non-solid for faster gameplay flow

got the elevator music to work

added some elevator music

corrected arena file

added more proper map name to bsp

updated levelshot and preview