I'm aware of the fact that the game World in Conflict (WiC) belongs to RTS and A2 is FPS. But there is one thing which they have in common and I admire the most - atmosphere.
Now think of free roaming which has thrilling action and great atmosphere, where every single time you play it is completely different, where enemies are trying to capture your base and areas like in WiC and you have moments similar to Normandy in CoD or armor battles in WiC, or ...
And now imagine these situations happen all the time and are unscripted, unbiased, not-predefined ... and you are the soldier located right in the middle and experience a battlefield the way it's meant to be.
Once you grapple on WICT and understand how it is working you can make missions in a split of a second. I created two full free roam missions, but my goal was to make realistic story and objectives, so it took me a while to finish them.
I am still filling up this thread, however do not hesitate to visit WICT's website and Bohemia Interactive forum --- there is nearly a ton of material, discussions and history connected with development of WICT.
I hope you will enjoy it.
P.S. Scripting knowledge IS REQUIRED ! :)