During the tutorial job "Warehouse" there's an extra objective, while it is simple, it may be hard for first time players.

The objective itself is killing the neutral NPCs at the end of the job.



4 enemies with AK and 2 with sledgehammers.
I highly recommend not going guns blazing and using the AK that is available during the gun tutorial.
Don't forget to pick up spare morphines, one mistake and you can easily die.