Downvote.
It have a lot of potential and is well written, but still have some serious problems for me.
First, it lacks information on the main article. Several things that are on the logs should be transcribed to the SCP, where they belong. The AI and whatever the Foundation already knows about it, the description of the simulation, including the list of scenarios and known interactions of them, and so forth. Those make no secret or spoiler of the logs, the main skip could be better used.
Also, some things on the logs bother me, specially given the potential of this item. To begin with, it was plainly stupid for the research to begin test of the Ultra Realism with Combat. Considering who they are and what they are testing, even at IQ Challenge they should imagine that URM could be extremely dangerous, otherwise they would not be the Foundation, but just the ISO version of the UIU.
The AI goes rogue without much on "character development", and the research team makes a poor job at their intended goal of exploring it. The relationship between the D-Class and the AI could be better developed for the end to make sense, and the experiments on the scenarios could be worked to seem more professional than "lets try the next one and pray for all to go well". If you want a single D-Class to live through as much as possible of the ordeal, you should be better prepared.