My $0.02 AUD
If you like world war two combat aircraft at all, IL2:FB AEP is a must have.
Graphically outstanding, pretty good flight and damage modelling, amazing array of flyable aircraft, plus heaps more non flyable AI types.
Big maps with lots of objects, or little maps with virtually no objects...the choice is yours.
The Quick Mission Builder is great for whacking up a quick fight, the Full Mission Builder is pretty good too, though a little daunting at first.
There are some excellant third party tools that you can download for free that make making a mission an absolute breeze........UberDaemons Uber Quick Mission Builder for example, is really good for quickly making quite complex missions.
Online experience will vary depending on where you fly, that is, which server, not what terrain.
I tend to mostly play co-op missions with a small group of guys I have flown online with for years, and enjoy the heck out of it.
The dogfight servers can tend to have a bit of whingery though.
Setting up your own multiplay game for yourself and a couple of mates to enjoy is really simple too.
All in all, I would highly reccomend IL2:FB as a great fun game where you will get to fly a lot of types that have never been flyable in any other game.
As I say...if you like WWII aircraft, do yourself a favour and grab a copy, you wont regret it.
Blue