This is awesome

Jesus Christ

It had the obligatory Jesus Christ, which is always good, but then it just turned into Newgrounds references rather than MGS jokes. The ending was good, though. I hope to one day see an actual MG Awesome 3 that parodies Sniper Wolf, the PAL Key, the REX Fight, etc. That one can have the Meryl ending lol.

I mean, objectively everything about this is good: clean animation and the like, but I struggle to understand how this is a Metal Gear parody at all.
There's an earlier review that summarizes my thoughts pretty well: Newgrounds these days is so bogged down by its own self-obsession that nobody is trying anything new, and that really hurts this particular film a lot: for a film called Metal Gear Awesome 3, the only gag related to Metal Gear in the whole thing was a post-credits scene!
Every other joke is reliant on the audience being familiar with Newgrounds stuff. I laughed at some of it sure, but I doubt I would get much out of this if I weren't familiar with Tankmen, Alien Hominid, and Madness. Even then, I feel like most of the laughs came from just recognizing things rather than from genuinely finding any of it funny: the only one I remember is the blood splatter forming two guys having butt sex which is admittedly kinda funny, but nothing else springs to mind.
In the end, it's basically a glorified Newgrounds commercial: it doesn't do anything new (or even try for that matter) or interesting with the source material.
It's basically a well-animated parody of a parody, when it had the opportunity to be so much more than that.

Lol it's a lot better when you can actually hear it!