Mystery of the "Photon" product

You've been ambushed by a military squad in Army Warehouses. On the commander's PDA you've read the order to find the certain device codenamed "Photon", which has fallen into the hands of an unknown person in the Chernobyl Zone. The order ends with the note that another squad was sent to camp the "transition in the sector 40".
== Walkthrough ==
This task runs together with The Mad Doctor. During it, you find three PDAs with encrypted information, and Docent decodes them. After you find out about the heat barrier preventing you to go deeper into X-17, and ask Vasily to make you a fireproof outfit, Docent contacts you with the decoded information.
Turns out, a secret device that can create directed microwave radiation went missing from a military research institute on the mainland. The military are looking for it in the Zone. It's probably the same device that creates the heat barrier in X-17.
== Notes ==
* After starting this quest, the Sniper storyline can be continued with the quest named Stash of a "Monolith" fighter.
== Bugs ==