It's very odd to have "the" before personnel. I think in the second instance you could entirely drop "members of the"
Areas affected… to its infrastructure and population
One's singular, one's plural.
population living in areas
populations?
human-built infrastructures
I'm not going to say that this is incorrect, but I don't think I've ever seen infrastructure pluralized. I think it's a collective noun.
reminiscent to a skyscraper
Reminiscent of?
No trace of the civilians who did not abandon the area has been found.
This sentence feels more literary than clinical, and currently sounds like it is only describing one instance/person/situation.
and realizing seemingly meaningless tasks
realizing?
, such as reading from blank sheets of papers
sheets of paper
Everything started when this man with the hat appeared.
the hat? I mean, if you're going for a specific colloquial tone, that's fine, but just kind of odd.
natural resources including water bodies, wild animals, vegetation and minerals in the affected area were depleting
bodies of water. Also, I'll buy everything else, but minerals? Unless you meant something specific… just, is a significant portion of the literal Earth disappearing around these things?
Operatives crossed the main door
Probably main entrance? Just sounds odd to cross a door.
, revealing nothing worth noting.
But you then note things…
of SCP-2168-, with the several hundreds of other rooms were empty of occupants.
1: You missed a -A
2: Extraneous "were"
but, the Director call me…
Calls or called? Again, if his grammar is supposed to be odd, ignore this line.
Could you please explain me what it implies?
explain to me?