Yes, I do, thank you very much.
The Marathon logo is from Marathon made by, oddly enough, Bungie. Marathon is the granddaddy of almost every multiplayer FPS to boot. AND it share many of the elements of it's story with Halo. Notice the main characters helmet looks a hell of alot like security? Notice the Marathon rocket launcher looks very similar to Halo's, right down to the SPNKr on the side? Notice how the end of Halo is incredibly similar to the beginning of Marathon?
Despite the recurring similarities between the two story arcs, I feel that it's a coincidence that it's in the picture. I highly doubt it was intentional. Bungie isn't a company for subtlety. Ever notice that the Marathon logo was on the side of the Pillar of Autumn? If one of the buildings had a Marathon logo on the side, then I'd say it was intentional, but NOT on the side of a pile of rubble.
Can we stop being an @$$-hat now, xalenar?