The CallOfWarcraft mod seeks to blend the weapons and movement of Call of Duty: Modern Warfare 2 from 2009 into the world of World of Warcraft. On October 8, 2026, the project published changes related to equippable rifles, hostile characters with weapons, grenades, and shooting effects. However, it is still an experimental integration, with no ready-to-install package or standalone demonstration of all functions.

The official CallOfWarcraft repository explains that the mod combines two active processes at the same time. The compatible version of Warcraft is 1.12.1, while the shooting component depends on the original multiplayer files of Modern Warfare 2 (2009). Therefore, the project does not work by simply copying a weapon into current WoW.

How does the CallOfWarcraft passthrough mod work?

The integration uses the Benilla client to display the world, characters, and Warcraft interface. At the same time, a modified instance of Modern Warfare 2 processes weapons, arms, animations, and firing effects. Thus, the goal is to leverage parts of two running games, without just replacing sword and bow textures with rifle models.

Historical image of classic World of Warcraft, used to illustrate the world the mod intends to modify. It does not show CallOfWarcraft in operation. Source: Tilting at Pixels.

According to the developer, the shots utilize part of the damage system of the modified WoW server. The client features a crosshair, hit indicators, recoil, and damage numbers, while the server logic validates the result. Additionally, the mod suppresses normal melee attacks when weapon controls are active.

CallOfWarcraft mod: rifles, armed enemies, and grenades

The project notes describe humanoid enemies equipped with rifles and line-of-sight checks. There are also changes to patrols and movement control. However, the presence of these features in the documentation and repository does not mean that all situations have been tested in prolonged matches.

Gameplay of the original 2009 Modern Warfare 2, whose weapon simulation is used as a technical reference for the mod. This image is not a capture of the integration with Warcraft. Source: MobyGames.

The author also lists custom military equipment, expanded inventory, and item collection after bullet kills. Furthermore, the mod provides for grenade throwing and firing sounds that the server needs to coordinate with the simulation.

On the other hand, the body physics component is still awaiting its first live visual test. Thus, it is not correct to announce ragdolls as proven to be working in the world of Warcraft. Code implementation is only one of the necessary steps.

Is it possible to install CallOfWarcraft on Windows?

The repository provides patches, integration codes, and preparation scripts, but does not offer a ready-to-install package for common users. Therefore, this article does not include artificial game download buttons. Preparation requires compiling the modified Benilla and IW4L clients, as well as an adapted vMaNGOS server.

According to the README, the user also needs to provide their own legally acquired copies of the original data from World of Warcraft 1.12.1 and of the multiplayer of 2009's Modern Warfare 2. The project does not distribute commercial game installers, private databases, or accounts. Therefore, obtaining only the repository is not enough to play.

Another screenshot of the original Modern Warfare 2, presented only as context for the weapon system. It does not demonstrate the CallOfWarcraft mod. Source: MSDN / Duke4.

What is missing for the integration to become accessible?

The developers still need to expand the joint validation of the shooter client, the world of Warcraft, and the modified server. Furthermore, the installation depends on specific old tools and game versions, which makes it difficult for people without technical experience to reproduce the environment.

The CallOfWarcraft mod shows an unusual approach to modifying games: using systems from two distinct titles at the same time. However, for now, the results depend on the statements and code that the author has made available in the project. The screenshots in this article serve to identify the original games and should not be treated as demonstrations of the finished mod.

The Allves Games also follows other initiatives that combine game systems, in addition to projects for native ports, such as SoulCalibur II's RingOut. However, CallOfWarcraft is an experimental real-time integration mod, not a recompilation of an entire game.

Sources: CallOfWarcraft repository; integration commit; subsequent commit.