Sub-machine gun for Yurik

Yurik is asking you to find his fancy SMG he lost somewhere at the Dump when fleeing from the bandits with his friend who died in the process.
== Walkthrough ==
The SMG is located on a dead stalker's body inside the [ collapsed tunnel] in Dump. The tunnel has a plagued rat, which might or might not be your first encounter with Plague, so you might be interested in reading that page.
Upon grabbing the gun from the body, a mutant spawns on your way out of the tunnel. Kill it and return the gun to Yurik for your reward.
== Notes ==
* Unlike in vanilla, HK MP5A3 "9x18" is actually not entirely unique in OP-2; there's another one in Cap's chain quest you can give to Yurik. However, that gun will be needed for another chain quest (Grey's).
* Nobody makes you give the gun to Yurik immediately, you can keep using it for a while if you like it. This is the most powerful gun in 9x18mm, along with Glock 25, although not the most accurate (that would be APS).
== Bugs ==
* The body of the stalker can and will rot away in several days, locking you out of the quest, so don't hesitate with it too much.