Hah ha, Guys, very clever and interesting (and humorous) comments
fiznerpin1962, well, you can ignore Mole's behavior over there if he gets into trance (sensing/calculating danger around) and do not move from his position. The job is still doable whether he comes with you next the the underground tunnels entrance or not. (PS: There are some APCs around the complex, there may be up to 4 APCs at times around the complex, and on the overlooking hill. Depends, although they move within an area of reason, they are free-roamers. Also, there's significant amount of Military activity going on, so there may be one or two soldiers still nearby, also the the dogs may need to be considered.) However, I'm making some adjustments in the coming patch/version, Mole should be more brave and cooperative.
DARK TEMPLAR, I remember I had noticed that that document was recovered from an unexpected NPC in one of my runs. It seems it's possible that other NPCs (around that area is crowded with Stalkers) may collect it before Marked One can. AI is very dynamic and Free (salute to
xStream) and NPCs do thinks you would not actually ask or expect. I will relocate the document in a place not so accessible.