Hello,
I dont know if this was suggested, did not find any thread, so im going to suggest it. How about add special function called "Player Collisions"? this is like the "Vehicle Collisions" which got added in 2015. With the "Player Collisions" function you will not be stuck at stairs/doors while playing certain minigames, also you will be able to walk?through players... but shoots from weapons will take damage still.