About running it all on the server, that is also an option but it then there would be small delays on players movement and such and it would feel less smooth.
, you will get a small delay on the clients, however this delay is technically than only a visual one since the server does the real work and the clients just move projectiles for smooth movement. To 'hide' these small delays, most mp games use things like interpolation. I don't know how experienced you are with mp, but these things can get pretty difficult and head scratching (I have experienced it myself the hard way
).
Is your game fps/3rd person or topdown? For topdown it is a bit easier to get things right since the camera is more far away so you could get away with a simple/not perfect interpolation function or no interpolation at all perhaps.
