Physics driven pawns


I’m new to UE4 and I’d like to make a fully physics driven game. Players would move by applying forces to their “pawn” and bounce/collide around the world following physics rules.
Can something like this be done using only blueprints.
Main questions so far

  1. How do I get a reference to my pawn that I can apply a force to. At the moment, I’m getting a child component reference -> casting it into primitive component and apply force to that. It does move the mesh that is a child of the pawn, but not the pawn itself.
  2. How would fully physics driven games work in multiplayer( would it be jittery, laggy? )