You're referring to the H-60 Tempest bomber, that does have 2 crew,but this ship has the B-wing's fold out T wings.The engine sections are also very different and also B-wing.And the body is cut like a B-wing, and not as thin as the H-60.And I just don't see a cockpit at that end either.It may actually be a gunner's pod. http://www.imperialshipyards.net/SMF/index.php?topic=5110.0 scroll down till you see the B-wing with the concept B-wing, the Rebels one looks like a combination of the two. If you go down further you'll find the concept AT-ATs as well.
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If you zoom in on the picture you posted Gabe, I feel like you can clearly see a "cockpit" on the far end. It is reminiscent of the tempest with Bwing small wings. I think it is just the Rebel version of the RMQ drawing.
All I can see in this picture is that big USB connector in the middle.