i honestly just play with rep+ for the buffs and improvements, i don't care about the online coop
there is some mods i really wanted to play, but they aren't compatible with rep+ (like repentagon, it's a really awesome mod, but is'nt compatible with rep+), and i also don't want to have a risk to lose my save file just to play a mod and then come back to rep+

if someone actually make this, i will be very very happy