Way up there on the disappointing scale
The first twenty seconds actually made this look promising. Nicely done art, an intriguing plot (a young guy's experience in the army), I was expecting something pretty interesting. But right away that got bogged down by everything else.
While I thought the initial character design was great, you can't just use the exact same look for every character (and changing the hair doesnt count.) The voices were also pretty similar to each other, maybe work on differentiating your voice acting a bit there, though it was otherwise good.
But worst of all, the pacing was god awful SLOW. Every little moment lasted about five times as long as it needed to, so there were many moments of just dead space. For instance when hes holding up his bag to "defend" himself from the sniper, he just stands there shaking for a solid fifteen seconds until the guy next to him finally chimes in. I feel like you're trying to make a comedic moment there, but it really falls flat. Maybe try working more with the camera, zooming and panning faster and more dramatically to guide the viewer along what you're trying to portray.
And finally, i dont think you can legitimately call it an episode if nothing actually happens in it. Again, it starts off looking as if its going somewhere, but once he lands, its just a string of attempted humor leading to an abrupt, inappropriate ending. By the end I feel like nothings been accomplished, aside from the base transfer which is really just the opening. In fact, when I finally feel like it's picking up some plot, it ends. And might i add, on a truly dumb and pointless ending. i think you're suggesting that the black haired guy is going to be a significant character, but you have to at least give us some reason to care about him if youre going to end it right there. Really, "hi there" is pretty far up there when it comes to dull last lines.
All that said, youre a great artist, a decent animator, and an okay writer. Just make it snappier, quicker, and, well, more interesting, and you should have something truly entertaining on your hands. And maybe get someone else to do the general's(?) voice acting. you can do pubescent kid, not stern superior.