Here is the full list of all 35 Cabela's Hunting Expeditions achievements.
Unlock your first firearm
Shoot a Trophy from optimal distance
Hunt a big game animal from at least 70 yards away
Finish the first hunting mission
Hunt the First Trophy
Collect the first 5 Flags from the vehicle hunts
Hunt 5 Trophies from at least 200 yards away
Hunt 15 Trophies from a Shooting Rest
Obtain all the Gold medals
Mark 20 big game animals
Hunt 3 attacking animals in a single mission
Hunt 8 attacking animals
Activate 20 Hilltop Spotting locations
Activate 15 Shooting Rests
Mark 10 Trophies in Strategic View
Earn 180 GP in one hunt
Claim an animal on 5 Quick Hunt levels
Collect 25 Flags from the vehicle hunts
Claim an animal on all Quick Hunt levels
Hunt 4 animals in the vehicle hunts
Hunt 10 small game animals
Claim more than 20 animals in Quick Hunt
Hunt 30 animals with rifles
Hunt 30 animals with Semi-Auto firearms
Hunt 30 animals with the Lever Action firearms
Hunt one Cape Buffalo, Elephant, Leopard, Lion and White Rhino
Unlock all the gun parts
Unlock all the Semi-Auto firearms
Unlock all the Lever Action firearms
Find 50 animal tracks
Earn 25,000 XP from a single trophy
Unlock all the Rifles
Reach the highest level possible
Reach 500 000 XP
Gather all the Flags from the vehicle hunts