The scope of this wiki includes the Call Of Duty Wikis game series, its content, development, community and modifications.
A new article can be created for every weapon, game mode, easter egg, ability, mission, map, named character and usable object.
Where there is a very small amount of content (one line) for a large series of related topics, it may be better to make one central list/table instead. However, you should not be scared to make a new page.
Articles are not appropriate for fan websites, people not directly related to the development of the game, or unrelated games.
If you are unsure, ask an Administrator.