Left 4 Dead 2 is a cooperative first-person shooter video game developed and published by Valve Corporation. The game is set during the aftermath of a zombie apocalypse and follows four survivors—Louis, Zoey, Bill, and Francis—who must escape from infected areas.
To spawn a laser sight in Left 4 Dead 2, you must first find a laser sight. These can be found in certain campaign levels, or in the dark carnival level. Once you have found a laser sight, press the "use" key to pick it up. Then, press the "spawn" key to spawn the laser sight.
Laser sights are very useful for killing zombies. They increase your accuracy and make it easier to hit your target. So, if you’re looking for an advantage in the game, be sure to spawn a laser sight!