Hello from tonight's stream!
I can see this being a lot of fun, but what caused issues for me was the controls. When you're third person, turning is hard to do well. You start slow and then build speed turning, but it still is slow compared to how fast you're moving the mouse. By contrast, in first person things are too fast. It still has that weird build up, but now it starts faster and goes faster to the point of making it hard to aim. Whatever is causing this way for turning to go, I'd recommend trying to disable it and instead make turning left and right the same speed regardless of view mode.
I would also say that when in first person (where the player can't move) the game should still track if they're holding movement keys so that the moment first person mode gets dropped they can start moving. I've found that even when switching from first to third person, the game won't register movement presses, resulting in the player standing still and possibly getting shot away.