Multistation is the most important innovative feature of the game...it's the thing that makes the game an immersive online experience...
I've personally played on the P-3 and OHP in multistation and it's a lot of fun. You don't really have to play against other human opponents...you can create your own custom mission and chase enemy platforms together with your friend(s) on the same boat/airplane. Of course, it's preferable if the "bad guys" are random generated both in location and type...
