According to sources cited by the Los Angeles Times, Activision has assigned duties for Call of Duty: Modern Warfare 3 to three development studios.

Modern Warfare 2 developer Infinity Ward will work on the singleplayer game alongside start-up studio Sledgehammer Games.

Since the release of Modern Warfare 2, Infinity Ward heads Vince Zampella and Jason West left the studio under a cloud of controversy and created a new studio, Respawn, to be published by Activision rival Electronic Arts.

Sledgehammer was founded by Glen Schofield and Michael Condrey last year. The two come from Visceral Games, best known for Dead Space.

Modern Warfare 3’s multiplayer mode is being developed by Raven Software, reports the Times.

Raven is the studio behind last year’s acceptable Singularity and 2009’s agreeable Wolfenstein.

The Times reports that production on Modern Warfare 3 is well advanced and that the game is on target for a November release. Activision has not formally announced or discussed any details regarding the next instalment in the Call of Duty series.