Tinker Tailor Stalker Spy:

I'm not a Loner. My name is not Kruglov. My task is to infiltrate any Factions that I choose, in order to investigate and seize any of the new prototype weapons and ammunition, that have illegally entered the Zone. I have left the Mercenary Faction to join the Loner Faction. I am the Stalker.
Encrypted Diary: Lukash gave me the task of meeting up with a large group of Freedom, who had detected an even larger group of Monolith coming from Radar. By the time I met them in the camp among the pipelines, the Monolith immediately started laying down a solid wall of fire, from the higher ground.
There were two times in this battle that I almost died. If I did not have both the armor of an Exoskeleton and the armor of my Tactical Helmet, I would have been killed in this engagement. Most all the Freedom squad was slaughtered at the bottom of the hill, where most all the Monolith were surrounding the trailer camp on higher ground.
I counted 8 Freedom patches and 12 Monolith patches, and I didn't get there first to loot every single body. There was just two Freedom with me, the only survivors and they got some good loot too. If I hadn't had the Prototype weapon, I don't think I could have turned the tide, and kept the Monolith from sweeping up to the front gate of the Freedom Base.
So many losses in a matter of minutes right before my eyes. I won't ever forget this battle.
* Game Note: