Spectator Mode

Spectator Mode is a feature in the Call of Duty Series that allows players to view Maps freely, or other players.

Overview
Spectator Mode can be utilized in a Private Matches, or Public Multiplayer game modes where there is a delayed Respawn, for example Search and Destroy.

In public games, it will show friendly players only, and they can be viewed in their view (first person, unless in 3rd Person Gamemodes), or in 3rd person.

In Private matches, players can set the game up so that spectating is free, allowing players to view a map with a camera. It can also toggle through the players of the game in this way. It can also be set so that only friendly players are allowed.

In Call of Duty 4, and World at War, players being spectated did not have their perks, or grenades, shown. In Modern Warfare 2, however, players' perks, achieved killstreaks, equipment and special grenades are shown, as well as their weapon and attachment. However, this is not present in Hardcore game modes.

Spectator Mode is commonly used to explore a new or old map. Many people use it and set it to free so they can go outside the maps and explore. A lot of Easter eggs have been placed outside of maps and are only viewable if a player goes in spectator mode or somehow gets outside the map.