Ah, a classic agent intro! I like that you describe Azeraath as looking and speaking a little spooky and unnerving at first, but then subvert that by having him be legitimately friendly and kind. I also enjoyed that third paragraph, where Tanner's excitement comes through very clearly from his inner monologue. I'm amused by the image of someone reciting an infodump to explain information. Only in the PPC would characters practice exposition delivery!

That first paragraph, though, is quite a mess, to the point where it's barely readable. It's only four sentences long, but more than half of it (roughly) is composed of two run-on sentences with two parenthetical clauses within one. It's way more info than my brain can process at once. There are a lot of possible ways to fix it up, of course, but if I were writing it, this is my take on how to structure that paragraph:

"Tanner opened the door and rolled his single bag of luggage in, taking a look around. He had stepped into a kitchenette section at the front of the RC, complete with a sink full of someone’s dirty dishes. The back portion was a “living room” section (such as Tanner thought of it). On the far wall was a bunk bed, where he assumed he would be sleeping, with a closet on one side and a white door on the other. In the center of the room, there was a green rug, with a wooden dinner table and a couple of flimsy-looking chairs."

But that's just my personal take/style. (The previous agents left all their dishes? Weird.)

Also, a couple minor punctuation mistakes:

These two sentences are missing their ending punctuation:
"On his face, he wore an uncertain expression"
"Azeraath looked a little lost"

In this sentence:
"Oh, uh, hi." Tanner said, thrown slightly off-guard by his hair."
The period after "hi" should be a comma, since a dialogue tag follows right after the dialogue itself.

And you missed the second quotation mark here: “Uhh… Tanner considered mimicking Avdol, but decided against it.

—doctorlit, possibly helping?