or more than half, is the preparation.
In addition to deer hunting dad loved photography, I remember as a kid him building a rifle stock complete with a trigger to mount and activate his camera. That way he'd be able to scout around prior to the season and when that big buck jumped up in front of him BANG! he'd shoot a picture of it.
At least that was the theory. I don't remember it working all that well- but like i said getting ready was half the fun
as for infrared well you certainly can't (for deer) put it on your gun and shoot something in the dark but I can "see" it being a lot of fun for scouting around.