Infinity Ward didn't expect players to discover the MP5 (referred to as the Lachmann Sub in Call Of Duty: Modern Warfare 2), so players must follow a set of steps to use it. Players will first ...

The platform mechanic is a nice change, but it is a little confusing on how to unlock guns like the Lachmann Sub.

The MP5 is known as the Lachmann Sub in Modern Warfare 2, but the new name hasn't impacted its power at all. We'll help you unlock the MP5.