Recruiting [Community Project] Random: A Blueprints Only Multiplayer Game by Metahusk

Thanks Parvan! Its great that they are available for community. It will really help newbie like me.
Edit: Parvan are you familiar with blueprints??
I am creating a fps project using blueprints and now I want to know
Q1: How could I create recoil to weapon
Q2: How to switch weapon to secondary weapon using 1 or 2 key or using mouse wheel.