These are the source files for my custom Portal 2 map, “Sendificate part 3 — Airtime”. You can use these files for sudying how the map works, creating a derivative map or any other purpose, in accordance with the Creative Commons 3.0 Attribution Unported license.
If you just want to play the map, then check it out on Thinking with Portals or the Steam Portal 2 workshop. Or check out the complete Sendificate series!