An idea I got for halo infinite down the line is that maybe for certain challenges or as battle pass tier rewards there could be different reload animations for different types of weapons that the player could equip in their weapon hall, like some stylish animation for the battle rifle where the Spartan flings the mag away with a flick of the gun and then rams a new one back in, just food for thought
They would have to ensure that all weapon reloads take an equal amount of time to the frame. Otherwise this would cause imbalance issues just by existing.