you can piece the two pictures together (minues the brutes and the ODST)
screen shot for the firefight being the left side
screen shot from the campaign being the right side.
Notice the same obelisk like stone structure in the raised grassy platform.
Also look at the first picture, the one i think is the left, there is a tall building with a letter J on the top of it. Infront of that building and lower down, is another building, with two red lines, and a yellow screen on the right of the rightmost red line.
Now if you look at the picture that i think is the one on the right, you can also see the same building with the red lines and the same yellow screen as mentioned before.
Meaning the two pictures are just two different views of the same area (at different times)
Also, the picture for the right, the one with the drop pod in it, has shattered the floor.
Look at the picture for the left, you can see that the floor is uneven, like the tiles has been shattered and misplaced.
Edit: Sorry i couldnt get the links to work, but you can find them in the first post of this thread.
[Edited on 07.29.2009 12:45 PM PDT]