use ribbon render to create the main body of the laser 

duplicate the main laser, increase curl noise intensity to create secondary light beam

use color curve to make the secondary light beam flickering

using the fountain template, increase red color intensity to create laser spark

Sub UV animated smoke

Set distance length of the laser beam

Turn Beam end into user parameter

quickly set up a blueprint to set the End beam location

set up user parameter to control the spawn count of spark and smoke

call out user parameter in blueprint and set them up so the spark and smoke only show up when laser hits surface

create actor Blueprint decal that disappear overtime