It is found in one of three stashes in Yanov, at the Cement Factory, Quarry's Excavator or Jupiter Factory. Can be sold to Owl for 500 RU, or used to obtain the A Keeper of Secrets achievement near the end of the game.
- A note on the back of an old document:
"Ghost, I'm taking my things. Thanks for the assault rifle - I'm going to need it. In exchange, I'm leaving you some of Doctor's medical supplies. I managed to trap the mercenary who was on my tail, so I'm not going to need them... I hope. I'm going to meet Fang now - he managed to put the decoder together. Let's meet at the usual place, if you can make it. Strelok."
- The document weighs 0.05 kg.