Earlier today, I tried messaging the airport contributor who is listed for KCHA (@Keshaun_Caldwell), but I haven’t gotten a response yet.
I just want to make sure that this is documented. Chattanooga Metropolitan was released for 3D today, but it doesn’t have the new terminal concourse which includes 2 new gates. The model released today only has gates 1-6. However, a few months ago, the Chattanooga Airport Authority completed construction and opened a new terminal concourse which also added two more gates to the airport.
Here is an article announcing the new terminal being opened: Chattanooga Airport — More Gates, Less Wait