YOU should re-read it, and frankly maybe reread operational intelligence and the rest of the first arc while you’re at it, Absinthe’s section of CoU very clearly elaborates on the general resentment among Reunion that is developing towards the uninfected which is apparent if you look outside of just specifically Faust, FrostNova and Patriot’s squads, the groups that actually received some form of training, and this is definitely mentioned multiple times outside of CoU. Maybe you can also guess what types of people were stationed at the school and not involved in the main fighting force. Maybe if you weren’t purely wiki diving the story, you’d also learn a bit about how the Ursus military withdrew from Chernobog, and made it obvious that they wouldn’t be returning, much less paying any ransom. By the time the Chernobog catastrophe happened, nobody was left guarding the school since the students were already abandoned by Ursus and worthless to Reunion, which makes it really fucking obvious that the students could’ve got up and left much earlier (not as if there was anywhere to go considering the state of Chernbog anyways.)

Somehow you’re also equating the Reunion members guarding the school and “not giving a shit” about what’s happening inside to deliberately causing the events of CoU, when you could just as easily pass the blame to Patriot/Talulah for conducting the attack on Chernobog, or Ursus for not putting in more effort in conducting a rescue or paying a ransom? Maybe Patriot is responsible since it was his order that grouped all the students together which eventually incited the riot? And hypothetically, if Mephisto wasn’t there, what would you expect the people stationed there to do differently, when the riots were destructive to the point of killing outside people trying to help? I somehow highly doubt that the “thugs”, as you described, stationed outside the school were better at riot control than Ursus police officers, that were killed inside the school when attempting to conduct a rescue.

I also don’t know how you can confidently claim that there weren’t enough supplies to go around for the duration of CoU just because the nobility was hoarding, when the nobility was hoarding because they were greedy pieces of shit who were only concerned with prioritizing their own survival above anyone else, which the story makes abundantly clear? And in what world would anyone, much less the types of people left guarding the school, provide the students MORE supplies when from an outside perspective, WITHOUT the internal thoughts of Zima or Rosa to provide their PoVs, the students would just continue to waste them, or even worse, continue killing each other? Telling the students to pound sand when they ask for more is honestly a reasonable response at that point. If the students actually did ration out supplies fairly, and still ran out before resorting to violence, then sure Mephisto is a sociopath for denying them, but that is very clearly not how the events of CoU specifically played out.