MA = 3 sides, each has all planes all the time, while
CT = 2 sides (Axis v Allies) each has the actual planeset available to its side for the setting represented. (or our best approximation given the planeset limitations).
CT focuses on specific times and places (Tunisia 1942, Phillippines 1944, Battle of Britain 1940, Germany 1944, etc) using the actual terrain (ne'er a pizza map, ever) and historic plane matchups. Each setting lasts one week, changed every Friday by a CT staffer.
The CT employs reduced icon settings to make identifying threats more difficult and making bounces possible. (Enemy plane's icons appear at 3.0 and less, friendly icons at 6.0).
Many fewer pilots in the CT - best time to get on 8-10 CST, where you can find 20-50 players, depending on the popularity of the setting.
Pilots of both sides often tend to be more friendly and helpful than in the MA. I rarely resort to squelching channel 1.
We would love to have you fly with us in the CT!