I like many of the ideas that already have been posted. Like more activity on the gorund more and detailed communication and suprises when blowing stuff up like a cargo ship blowing sky high because it was carrying ammo. But what also does really adds to the immersion is sound and acoustic! Nice engine sounds of planes starting up and flying by. Bomb explosions that make you dive for cover when close or are just faint deep BOOMS when further away. MG and canon fire that is adequatly loud. Not just the repetetive 1 second "MG sample" like in IL-2. If everything around you sounds nice and right the immersion is even better. Graphics and game mechanics is not everything. What is a NASCAR racing game with the cars sounding like golf caddies? You see a really big explosion with lots of smoke and debris. But what makes it really "enjoyable" is nice, loud and fitting "BOOOOOM"! I hope you see my point.
