Cabelas Trophy Bucks

there are 2 large varmint that you will find throughout the campaign. all of them will be the actual mission. here are the varmint you need and on what level they first appear.

coyote 21
gray fox 85

On Wisconsin's first map in the career mode, they have you hunt foxes. Shoot one and the achievement should unlock. I am sure you have shot the coyotes in the previous missions which are considered Large Varmint so this is probably completing the circle for that classification of animals. Wisconsin's maps should be well towards the end of the game after you have visited the Northwest, the Southwest, the South, and the East. You will also have to get through Minnesota's missions before proceeding here.