Actually, your shots look quite a bit wider than 16:9. Which raises the question if they actually are a direct representation of gameplay.
If they are, and the game has scaling horizontal FOV, then 4:3 gameplay would look like this:
http://img26.imageshack.us/img26/3749/43mess.jpg
They only look wider than 16:9 because I personally cropped the unnecessary black borders on the tops and bottoms.
This is because the cinematic sequences in the game have black borders on the top and bottom (you can see this for yourself in the Youtube video "Taking the Beach Part 1").