Subject 13 behaviour logs

This log was made to track behaviour patterns of Subject 13 to provide information on the way it "lives"

Day 1:

Subject 13 seems to be rather aggressive today, trying to smash through the cell barrier and use its weapons against them. Luckily we removed any interior weaponizing so the weapons can't be fired

Day 2:

Subject 13 has been mostly still today, we heard noticeable metallic bumping and scraping from inside the tank, it sounds like 13 is performing maintenance on itself. It did try to blast the walls down earlier today, and made a sharp dent in one of the walls.

Day 3:

It seems 13's "maintenance" yesterday was actually rewiring the weapon systems, using one of it's spare power cores to boot up the laser mechanism. It's been at the wall all day, causing multiple scorch marks and even melting a small part of the wall. We had to send high-voltage shocks through it to calm it down.

Day 4:

We found out that 13 has a sort of "sleep mode to repower its core when its energy is running low, this is why it "died" when we found it, it hadn't had the chance to go into sleep mode and the core died. We used this opportunity to reinforce the walls and deactivate the weapons again.

Day 5:

13 is awake again, and it seems to be upgrading its exterior durability on its shell, using whatever material it can, I think it's given up on trying to break out.

Day 6:

13 appears to have built some sort of drill attachment and is trying to burrow into the ground. We had to send it more shocks to get it to stop.

Day 7:

13 had expanded its hole during the night, and seems to be harvesting some microscopic element in the rocks, we think this is how it build s rudimentary power cores when it can't refuel its other systems properly.

Day 8:

Seems like it's another sleep mode day, our team went on board the tank this morning to discover how it came to be. We found out this tank originated somewhere in a place called "Dead Space" and it was built out of multiple soldiers, with an AI built to fight some sort of war. Its systems are in a warning mode, its trying to get back to its war.

Day 9:

Not much to report, other than the tank has re-weaponised itself and nearly blew the [censored] doors off. We found out, based on age analysis from its original shell, the war it was in ended 200-300 years ago after repairing the receiver system.

Day 10:

Its been a fun 10 days here working, but my team has been asked to move on with another task while some newer guards come and guard the tank. I hope this log can help them identify behavioural patterns with the tank.