The 7 Days of Halo 4! Day 6!

It's a Mammoth

Cortana's right, somebody is compensating for something.

And while you can wander around inside it, sadly you can not drive it. Cause that would have been awesome!

And that's all I got for today...

Other than the officialize on the UNSC Mammoth direct from the Halo Wiki.

Mobile Anti-Aircraft Weapons Platform M510 Siegework/Ultra-Heavy

The Mammoth is the largest land vehicle of the UNSC known so far, quadrupling the size of the Elephant in length, and can likely carry multiple Warthogs and Mongooses. The Mammoth has six heavy duty wheels, a cargo door below its main control, and sports two winches among other practical loops and hooks on its front for multiples uses. The Mammoth also holds a large MAC (referred to as a "mini MAC" in dialogue) on its top, near the rear of the vehicle.