Call of Duty Mission Editor

The Call of Duty Mission Editor is a basic mission editing program released for Call of Duty: Black Ops and, later, Call of Duty: Modern Warfare 2. It allows players to make their own missions for the games and spawn characters with custom equipment.

Just The Basics
Players can make missions/maps for three types of modes: Campaign (single-player missions) Multiplayer (adding more complexity to objective-based games), and Nazi Zombies (either survival or survival progression.) Notably, Zombies weapons can be brought into the main campaign.

Campaign
Campaign allows players to make single-player missions for either a challenge or good storytelling. Campaign missions can be streamed or downloaded either singularily or (if applicable) tied together. In Black Ops, Campaign Missions are available under Single-Player: in MW2, they are available under Special Ops. Objectives can be simple or tweaked. Players can start with different loadouts: as well, they can select several types of enemy equipped with different types of weapons.

Multiplayer
Multiplayer allows players to make their own multiplayer maps or game modes. As a starter, "Classic" variants of maps are available: players all start with an ASP/USP .45 and can pick up weapons equipped with random attachment loadouts as well as ammo and grenade piles. Killstreaks can also sometimes spawn. For customization, players have access to Private Match+ levels at base: they have a large degree of customization as to what players can spawn with (regular or Pro perks, a weapon but several attachments available, et cetera). As well, Nazi Zombies-like Survival maps can be made, with player characters picking a side and facing down waves of the opposite team until they succumb. Killstreaks, certain attachments, and even weapons can be enabled or disabled individually or all in a row.

Nazi Zombies
Zombies gets several adjustments: players can set starting point values, or, for fun, can set points to Infinite. Weapon positions and types, as well as their set attachments and after-Pack-A-Punch appearance and attachments, can be set as well, as well as the cost to open doors and such. As well, different things can be customized. Two new types of Zombies maps are available: Outlast, where, after a set number of waves, players will continue to a room with weapons and other such items, and Campaign-like modes with set objectives to accomplish amidst the zombie chaos. The game includes a Nazi Zombies Campaign following the original four Zombies characters (Tank, Nikolai, Ricthofen, and Takeo), and a second Campaign following JFK, Nixon, Castro, and McNamara.

Placeable Weapons
Be forewarned: this list is VERY, VERY long. The list concerns ALL available weapons that can be used in the editors.

Glossary

Bare Bones - The term used to describe an attachment-less weapon.

M16
M16 Bare Bones

M16 Flamethrower

Please note...
1. This article is fake. CoD is the property of Activison. If you want a modded CoD level, I'm not the person to go to.

2. CoD Wiki was a large help for this.