Once MP2 check/calls two streets, it starts to look like monster hands, quads or a boat, at the very least trip tens, to me.
Maybe he doesn't have a club, or is looking for more value on the river, but c/behind is fine here.
I think once he check/calls the flop, I would be thinking about a ten in his hand at least. Why is he, as pfa, doing that? It is a potsize bet.
Check behind the turn, then he has to bet his monster or check his non club hands on the river.