The Lachmann Sub in Warzone and Modern Warfare 3 is an SMG returning from the previous game and one commonly known by players as the MP5. The Lachmann Sub - or MP5 - is available to acquire, use, and customise in Modern Warfare 3 as part of the new Carry Forward system introduced with the release of the game.

Warzone 2 expert's Lachmann 556 loadout brings iconic Grau to Al Mazrah. The Lachmann 556 is a deadly assault rifle. Warzone 2 veteran Metaphor has unveiled a new Lachmann 556 build which he claims comes close to replicating the feel of the iconic Warzone 1's Grau assault rifle.