CSInput in Multiplayer?

Hi! I got Multiplayer working for the first time today and it seems CSInput doesn't work in multiplayer.

I enable the mod but in gameplay it acts like it is disabled. I cannot use d-pad even with mod enabled. It is the same for my friends who are playing with me.

Is CSInput disabled in multiplayer?
Does this mean I can only play maps with CSInput script included?

Thanks!

Rooms 3 and 4 will allow the use of CS Input mods.