lol, what if it was the Puma from mech assault??? that would be awsome!!!!!!
more serious though im sure that they arent going to bring every single vehicle weve seen in every halo lore. like it would be awsome to have two halo wars fully upgraded elephants in the game and have a specific game with them. or how it would be cool if they had vultures on the infinity and when you cross pathes with is as MC, you could see all of these vulture poping out everywhere DECIMATING everything in their path( at the new enemy of course). i just think that could be an epic cut scene like the one in halo 3 where all of the unsc fleet start wailing on the covenent keyship.
i hope that that warsphinx would be in the game but it sounds to powerful and i dont want them to nerf it down. mabye there will be a vehicle with limited teleportation capability or a stealth vehicle (dont know why we havent seen one yet other then for balancing issues). possibly as a flying vehicle you could jump into a giant sentinal (somewhat like an enforcer or like the ones on onyx). on a last note what do you guys think about a forerunner turret??? that could be amazing, think of a mounted sentinal beam!!!