At first i heard it was because it would not fit the loadout scheme they worked on. but after pondering it, how would it not? that could just be an ability in your loadout to be able to dual weild. I feel like that would be a great option since you can do double the damage in half the time if you use dual weild, but you would only be able to use it at the cost of not being able to pick other options.
what do you people think? should 343i consider implementing dual wield? I know alot of people, such as myself, really enjoyed that feature in halo 2 and 3.
I think if this thread gets enough feedback I might just make a poll