Here is the full list of all 38 Freeman: Guerrilla Warfare achievements.
Construct 50 buildings
Kill 1000 enemies in total
Forge 5 alliances with other nations
Reach 500 Reputation
Throw 200 grenades
Reach Level 30
Fully upgrade your Stealing skill
Fully upgrade your Agility skill
Forge 3 alliances with other nations
Reach 300 Reputation
Win 50 battles
Fully upgrade your Medicine skill
Fully upgrade your Intelligence skill
Kill 100 enemies with submachine gun
Kill 100 enemies with grenades
Reach Level 10
Kill 100 enemies with shotgun
Fail at stealing 50 times
Steal 50 times
Have -200 Reputation
Have -100 Reputation
Have -30 Reputation
Lose 50 battles
Possess 1,000,000 Zolties
Possess 5,000,000 Zolties
Land 100 headshots
Kill 100 enemies in total
Kill 100 enemies with pistol
Win 10 battles by yourself
Reach Level 5
Reach 50 Reputation
Possess 100,000 Zolties
Land 1000 headshots
Die 50 times
Plunder 50 times
Recruit all available companions
Defend your city 5 times
Accept volunteer troops 5 times