I made a proof of concept similar to this before. instead of moving the whole perspective you move the cursor (its not a game but you might find it interesting)
https://kainkun.itch.io/360
also how did you get the 360 to be seamless? (i used 4 cameras lol)
Since the 360 is already confusing for most people, maybe the guns being to the side is too confusing? also not sure what to do when youre left with the blue guys. also having infinite range is probably too strong