Idea for armor mod

I’m sure armor MOD Dlc isn’t in 343’s list but how does an armor MOD that allows duel wield with certain weapons such as magnums? Also feel free to include your own armor MOD ideas.

Here’s an idea for an armor mod:

Warden Destroyer: More like Grunt Eternal am I right? Can be 1-shot headshot with Nornfang but if Mythic, it requires an entire clip of headshots to kill it.

Req level requirement: 9

As long as it wasn’t every weapon, and made sense in-game (like dual pistols/SMG’s) I think it would work.