Call of Duty: World at WarEdit
Known as the "Rifle Grenade," the Grenade Launcher makes its appearance in every map of Call of Duty: World at War. It can only be found on the M1 Garand, despite its compatibility with most other weapons in Zombies. If it is taken from the Mystery Box, it is usually traded instantly by most players, but others may use it until it runs out of ammo. If upgraded, the Rifle Grenade is called "The Imploder." However, it is not wise to use the whole time, since it does not give many points after killing a zombie due to its high power.
Call of Duty: Black OpsEdit
The Grenade Launcher makes another appearance in Call of Duty: Black Ops. However, it can only be obtained via upgrading the M16, which is known as the "Skullcrusher," or getting the China Lake, a pump-action grenade launcher. Both do much damage to the zombies, however, the China Lake is disliked by many players because of its weight and reload time.
Call of Duty: Black Ops 2Edit
The Grenade Launcher makes one last appearance in Black Ops 2, only on the MTAR, after Pack A Punching several times. It gets 9 grenades outside, with one loaded into the chamber already. It does roughly the same damage as the Skull Crusher's Launcher, and has an impressive range to it.