I think the United Airlines Embraer 145 should be added into the game. I know ExpressJet operates it but I don’t know which other airlines do. Here is a photo of it:
(My Photo)
Here are the specifics:
Length: 98 feet (29.87 meters)
Wingspan: 65 feet 9 inches (20.04 meters)
Height: 22 feet 2 inches (6.76 meters)
Note: There are two different types: E145LR and E145XR. However, they both share the information from above.