Do think that there is a possibility of having hand-to-hand combat. It could be useful, like when Master Cheif runs out of ammo he can go over and just beat the -blam!- out of some grunt. Because to me the whole idea of melee combos with a weapon doesn't sound all that realistic, though a cool idea none the less.
-
The melee combo [i]is[/i] beating the blam out of some grunt, or at least I think so. Any way if you were hitting someone with the butt end of a gun, would you hit exactly the same way every time? I don't think so....