Single Player

Summary
Single Player (sometimes known as Vs. Environment) is like Default and Apocalypse, but with a twist. You are the only one in the server with tons of AI Zombies trying to stop your tracks.

AI Zombies are basically normal zombies controlled by AI. They have 125 health, basic attack and basic walkspeed. They can still sprint. They take appearance from your friends in ROBLOX.

You may have to fight a zombie that looks like you. If you have no friends, this is always the case.

If there is more then 1 player on your server, those who die, help the AIs. All players start as survivors.

Weapons

 * Use explosives, such as the RPG, to get high Killstreaks easily.
 * The Barret 50 Cal. can be useful with its penetration ability.
 * It's best to bring weapons that have good crowd control like the Minigun, M249 or the Flamethrower.
 * The Baseball Bat is a great choice for keeping zombies away when you need to reload. Just make sure to watch your energy reserve or you'll end up having no energy to run or defend yourself with.

Items

 * Highly recommended to bring items that give infinite stamina temporarily, such as the Candy Cane.
 * Pipebombs are very useful in this gamemode.
 * While most explosives and incendiaries are useful here, the Flash is very useless, since AIs do not get visual impairment.
 * While the Hammer may buy you some time, buildings can be quickly destroyed by AIs, if you are not careful.
 * Remember, Supply Boxes load in here.

Armors

 * It is recommended to use Tactical II since it can help you by supplying extra energy.
 * Firevest is not recommended, due to the fact that its fire protection ability is useless. The Lifevest is a good substitute for lower levels.

Strategy

 * Do not think that charging in the AI will lead to victory, you will die quickly.
 * Conserve ammo, as it is likely you will survive for long.
 * Remember that Extra Ammo can be bought, if you run out.
 * Disruptors are not recommended as they can be broken easily.
 * However, placing it on the rooftop of Foxriver Prison may be a good tactic, if you are camping.
 * The M939 is a good defensive wall and battering ram.
 * The more zombies you kill, the more that will respawn.

Trivia

 * The maximum amount of zombies that can spawn is 24 (that is unless a hoard command is activated).
 * If you Modcall, moderators can still visit your server, even if the player limit is one.
 * AI Zombies give 5$ instead of 10$.
 * This happens to probably to prevent extreme farming.