I have been on eight black bear hunts and I never tipped a one, and neither did my buddies. But then again, it usually states that skinning the bear is included and we always do our own. No one tips me when I kill bugs in their house, as I own a pest control business. I charge a fee, and you pay. Same as paying to go hunting imo. I know I have read where some people feel that you should tip your guide, cook, the guy that saddles your horse...everyone involved in the hunt. I tip graciously in restaurants, but not when I am hunting.
I hunt out of state all of the time and just do self guided, unless I am on a bear hunt where I need a guy baiting weeks in advance to get the bait established or if I was hunting Mountain Lions with dogs. Other than that, as long as the rules don't require it, I am pretty good and doing it on my own.

BTW; good luck!!!!!!