5. Battlefield 3
Battlefield 3 offers the largest, and most detailed battlefields in any first person shooter. While some games like MAG offer huge locations, they are otherwise insufficient in detail and lack the sense of vastness offered by BF3.
Just about anything can be blown up, and suffice it to say, there’s nothing more awesome than watching a huge radio tower collapse to the ground whether you’re watching the demolition from just a few feet away or from all the way across the map.