I'm looking forward to play this awesome map! Will you release it at Steam Workshop? And will the Script also work for SP and Coop/MP Missions? If not, you could make a Third map, where the Underground is at a nearly unreachable Place, for example 10,000 meters in the air or somewhere across the sea. Then you could create teleport points. Just like the map bra_minihattan, where you can move to the Underground, which is at a small Island beneath the main map. It's also not as hard to make as some kind of map transfer script. And you could use it with 3den Editor so far. Release when?