Player collision problem?

Im trying to set my game so when the player hits a trigger, a train will move in a matinee sequence and if the train hits the player then the player dies.
Problem 1: When moving, my train, or box for now, goes through the player not colliding with the player
Problem 2: The overlap/collision does not register on blueprint so i cant use it to do anything next
Problem 3: Unsure how to go about killing a player, is it just a destroy actor?