Here's a video that I filmed last turkey season with the Tactacam 4.0. I wasn't overly impressed with the quality, and decided it was more of a headache than it was worth.
I picked up a cheap Canon Vixia HF-R800 for self filming deer and did that a few times last season. This camera (about the same cost) was WAY better in terms of quality, but my discipline in carrying and filming was lacking. I also haven't found a good way to film without it being in the way when tower blind hunting as we have some smaller towers on my lease that can get crowded pretty quick with a kid, rifle, and camera gear.