So we are obviously on well tred ground, which means we're looking less at what is done, and more at how it's done.
First I have to say that the style and the production design on this are miles above what I was expecting at the start. This is lensed extremely well by Cinematographer Daniel Wall. The found footage look becomes a tool used by a solid craftsman, instead of a gimmick used to cover substandard behind the lens ability.
The script, if there was one, feels like it bowed down to the gods of improv, to varying degrees of effectiveness. Overall the film manages a loose, relaxed feel that fits with the concept. There are a few cringe inducing moments, mostly when characters are asked to address the camera directly, but these are kept mercifully short. While I won't be looking out for any of the actors specifically based on their performances here, I certainly wouldn't be shocked to see some of them do well in the future.
So now we gotta take a look at if the scares deliver, or all the rest of it is pointless. And they do, kinda. This has a grab bag of zombie/alien/monster/military experiment stuff going on. Despite how confusing that may all sound, it really just comes down to a scary thing chasing you through the woods. And at times the monster/s are pretty damn creepy. At other times they just look like a dude in a ghillie suit. It's uneven at best, but intense enough when it works to keep things interesting.
As to the explanation about what exactly is going on, there isn't really anything worth noting. It feels like a stew of every possible horror cliche you can think of given the situation they set up.
It's a bit too bad, because the potential is present to have been a really solid genre effort despite it's derivative roots, but instead we get something that is only mildly entertaining and hard to give more than a grudging recommendation. That said, towards the end is one of the single greatest headshots I've ever seen. That probably tips the scales towards worth checking out.