Here is the full list of all 12 A-Men 2 achievements.
Complete all missions in the Night Missions, in the Suburbs and in the Hidden Labs with S rank.
Complete all missions in the Night Missions with S rank.
Complete all missions in the Suburbs with S rank.
Complete all missions in the Hidden Labs with S rank.
Find all A-cogs in the Night Missions.
Find all A-cogs in the Suburbs.
Find all A-Cogs in the Hidden Labs.
Complete all missions in the Night Missions in less then 60 minutes.
Complete all missions in the Night Missions without dying.
Turn off 30 enemies.
Disarm 50 mines.
Fear to death 50 enemies.