Shooter game

Hello. We need to make a scene in good quality lasting 5-10 seconds. It is necessary that the spiders get out of the wall, a ray of light will walk along the wall. Spiders should fly away with a beautiful effect. The sounds of shots should be played, the game should restart 15 seconds after the start. I am providing you with a video to understand what I need. And also an example of a shot animation.