Ray gun

The Ray gun is the last and best sidearm to unlock in the SCP Tycoon. It is based on the best weapon is Call of duty: Zombies. It deals high damage and is able to one shot kill even a player equipped with a bullet vest and guard uniform. Ray gun is one of the most popular weapons in the game (among those who bought it). Both shields can block its bullets.

Pros

 * Good recoil and good range.
 * Big ammo storage.
 * Very high damage.
 * Deals AOE damage.

Cons

 * Highest cost in the game.
 * You need to go to the armory to get it.

With Ray gun
You have one of the best weapons in the game. Once you get it, you will slay players as if they were pieces of paper. High and AOE damage, big ammo storage are biggest pros. The only thing you need to be aware of - opponent's weapons. One of the best ways to kill SCPs.

Against Ray gun
If you meet the Ray gun, you are dead. Use most OP weapons to kill your opponent before he kills you.

Trivia

 * Early version of the Ray gun could kill a juggernaut with just one hit.
 * In the original where it came from it dealt no AOE damage.