darkbelg:

Vigil:

EpicFailMan50:

Im really hoping theres going to be more units in the actual game.... 

There is.

 

only the special units will be more in the game right ? the rest is the same i think

Not sure.  But I would assume so.  You figure though there is still the Pelican, UNSC Sparrowhawk, The Covenant Phantom, Brute Chopper, and more.  Plus you have other units we may not have even heard of.