Hi BlackStar,
I will do my best to answer your questions but if you need more info check out the game website at:
https://fighterace.ketsujin.com//default2.asp
Ill try to answer in the order of questions asked, so here goes:
1:How does it compare to fsx?Not really fair to compare the two, FA is a online combat sim set in ww2 ,which has been going for 10 years. The game engine has been developed a lot but you could not compare it to Fsx.
2:how big the game is (playing area etc:The game has many “rooms” offering different options.In some rooms ie Tactical combat the maps are large, in others like Free for all the maps are small to produce instant combat.
3:chosie of planes: You have over 100 planes from 5 countrys to chose from(England,Germany,Russia and the Usa.
4:How big exactly is the online? The game does have a detailed off line learning option but the fun is really online against other players
5:how serious are the gamers? take your pick! The game has players of all ages and backgrounds taking part, so you have some who take it serious and some who just like to take part and have fun with there friends.
6:Can you have teams etc with head sets for comunication? Yes you can.
Hope that helps,
Regards Woody