For this achievement you need to kill a five star coyote or fox with 100% integrity. You can do this in the last region once you have the crossbow. For this and all the five star 100% integrity achievements you should follow the same pattern. Once you are in an area where you are hunting that specified animal just run out and kill everything with you’re A/S buckshot or birdshot shotgun. As it has the quickest reload and most bullets. What you are looking for is the five star animals. Most of these can be done on the last arcade mission for each of the last three areas as you’ll have plenty of Turkey’s, Deer, Rabbits, Prairie Dogs, Ducks, Geese, Hens, and Wolves in each of those arcade missions. Once you’ve found the location of the five star animal restart the level and equip your crossbow. Start the match heading towards that animal and kill up close any animal in your way to get the X-Ray power up. If you don’t get it the first time, try again. Once you have the X-Ray power up head towards the location or spot where the five star animal will appear. Then activate the X-ray power up and kill the animal with your crossbow and you’ll get 100% integrity and the achievement.