Originally posted by Shaky
OK, somoen help me out and describe the new arenas and their use? Most are self explanatory, but still 
Main Arena is exactly what its name implies. Every plane is available, and some cost Perks to Fly. Capture enemy bases is the name of the game, but you can do whatever you want really.
Training Arena is where to spruce up your skills, There is a Dedicated group of Trainers, who you can contact for help.
Dueling Arena is where you go to duke it out, with another opponent or a group of opponents.
Combat Theater is a Rotating Group of Terrains and Planesets, Changed Weekly AFAIK.
Special Events is set for Special Events, Wenesday Nights Eastern, Thursday Afternoon Eastern, Friday Night Eastern, are the staple events, This is where Scenarios and other events take place too.