I *loved* Operation Flashpoint, and it looks like BI Studios have expanded the original concept into something muc complex: ArmA: Armed Assault
Check out the official page and screenshots:
BI - GAMES - Armed Assault (ArmA)
The thing isn't the screenshots - Operation Flashpoint had a huge level of playability that was just superb - and the developer community was very impressive, building new models and military equipment to use.
Anyway, I've written a bit about it here:
Brian’s Business Blog » ArmA: Armed Assault
I've also downloaded the demo and will hopefully try it out later.
Question is - anyone else here excited about ArmA: Armed Assault?