How do you unlock MP5 in the beta version of MW2?
- To acquire the MP5 in the Modern Warfare 2 beta, simply complete the steps below.
- Upgrade the Lachmann-762 to level 13 to let the Lachmann-556 occupy the Receiver slot.
- Reach rank 12 with the Lachmann-556 to unlock the Lachmann Sub in the Receiver slot.
- Use the MP5 or the Lachmann Sub from there.
As you can see, it’s not too challenging if you know the processes, but, if you see it on the ground but don’t understand why it’s locked in the create-a-class option, it may be initially confusing.