Regarding locking a Game Cam: what I did was i bought a Master Cable Lock, and had a metal cover made that fit the cam. The cover was completely open on the back. On the front there ws a flange about an inch wide leaving an opening the cam would not go through, but the lens and motion detedtor was fully exposed. Had 2 eye bolts welded to the cover, one on each side. Strapped the cam to the tree, then placed the cover over it, threaded the cable lock cable through the eye bolts and snuged it to the tree. The eye bolts were positioned so the cable would not interfeer with the Cam operation.

I have probably made it sound complicated trying to describe it, but it was very simple, cost $20 to have the cover made and the Mster Cable lock was about $10

This is a very crude sketch

Hope this helps someone.