So I just had a dream about some crazy vehicle in Halo. It was like a stretch mongoose/golf cart. Think this but a little longer and wheel space a little higher without any seats other than front and rear. So you could techinically fit your full team. 2 in front 2 in back randoms standing in the middle. The bottom of the vehicle is pretty much bullet proof. when stopped you have the option to flip on side. You can use it as portible cover. Just thought I would share another crazy idea I had during my sleeps. 
The new warthog was in their too. The main difference being none of those red tanks and the bars were lowered almost touching the frame.
That is all I can remember from my Halo dream. Hope you like it.