Dual wielding has been brought up in the past, but some would say it’s unbalanced to have people running around with two Cobras with boxes yelling REEEE for the civ bullet hose. One can only imagine the horrors of the dual Maplestrike…
What might work, however, is allowing a single hand item to be wielded alongside a single hand weapon. For example, you’re using a pistol, so you can use that vaccine you have keybinded, maybe even lob a grenade. It could also work with rifles as a faster way to use items so you are defenseless for a shorter period.
This system can also be reused for reloading with magazines. It’s a pretty good way to show magazines and allow people to switch between tracer and fragmentation mags, for example. It also means reload animations showing the magazines are easier to use.
The Maplestrike is a two-handed weapon. It’s very impractical to dual wield.
It won’t be OP if you give a massive nerf to accuracy and drastically increase recoil which would be fitting, plus you can’t use stamina attacks or aim down sights/scope. At that point even a dual Cobra becomes a rough spray incapable of hitting anything at mid range.