I'm not really sure what happened to that hangar remake, guy probably got overwhelmed as it seemed like a massive undertaking. However, I finished the Skyscraper map today and gave it to Pecon to look over, so you can look forward to that popping up on the server some time soon. Also, when the map does appear on the server, the first person to find all the chests in it will get 3 million points. Look here for the requirements.
assuming that the skyscraper is high enough to kill normals and you can actually stand on the roof, i have an idea on how to brutally murder every normal
step 1. go as a boss that has knockback
step 2. bait all the normals to the roof level
step 3. blast every normal that took the bait off the skyscraper
step 4. watch them fall to their deaths and splatter on the ground floor
step 5. get backstabbed while you watch your victim hit the floor (optional)
step 5a. repeat from step 2 until you go to step 6
step 6. die