Just wanted to point out - for the Huntsman challenge - hunt the special Bobcat. People have recommended staying on top of the rock and waiting for him to eventually come towards you.
Best way I have found... Immediately after you find the 2nd clue, he will appear and run through the small canyon, have gun ready and shoot immediately. As simple as that.
Rayman Legends (XB1), Cabela's BGH: Pro Hunts, Ryse, Forza 5, COD: MW3 and MLB 2K9
100% game totals (all DLC included): 72
Cabela's North American Hunts: Achievement Guide by Goots 88