A nasty accident

Barkeep does indeed know a person who can fix the PDA of the dead military guy. However, in return he wants you to kill a creature that is sending zombies to the Bar at night, and collect chokes from the shotguns of its puppets.
== Walkthrough ==
After midnight, speak to Kitsenko at the southern checkpoint of the Bar. A group of zombified stalkers will attack it, led by a Psionic. Kill them and collect at least 3 chokes from the bodies (of 5 available). Bring them to Barkeep, just to know that his people broke the PDA beyond repair. 
== Notes ==
* The psionic in this quest is special and is not eligible for Wildlife photography.
* After finishing this quest, Missing expedition triggers automatically. This is probably an oversight by developers, as Marked One shouldn't have known about any mercs to hunt for the info.
* Zombie corpses with shotgun chokes do not disappear. An additional two chokes over the required ones can be picked up after the fact.
== Bugs ==