Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Arm Day	Climb the giant tree.
Backfired	Kill one of your team members with an opportunity.
Battle-Hardened	Complete any mission on Hard difficulty.
Big Bang Attack	Stun five or more enemies with one Stun Grenade.
Brute Force	Kill all enemies from a single area.
Doctor's Orders	Heal your comrades 10 times.
Four of a Kind	Kill four or more enemies with a single burst of Submachine Gun fire.
Golden Silence	Finish Missions 1 to 7 without causing an alarm.
Is That All Ya Got?	Eliminate all reinforcements called in during an alarm.
Light-Fingered	Use the Steal skill 25 times.
Long Shot	Hit a target from a great distance with the Sniper Rifle.
Native Babbler	Use the Chitchat skill 35 times.
No Cause for Alarm	Finish Mission 4 without causing an alarm.
No Harm Done	Complete a mission without killing anyone.
Nothing to See Here	Lure enemies with a Whistle while using Camo 15 times.
Out of Mind	Hide 50 bodies in bushes.
Probably Just the Wind	Complete any mission without being spotted.
Pyramid Sightseeing	Finish Mission 7 without causing an alarm.
Quiet as a Mouse	Finish Mission 2 without causing an alarm.
Safe Landing	Throw 40 bodies from precipices.
Slipped Right Outta There	Finish Mission 6 without causing an alarm.
Tak Mal Arik Tiak	Experience the loss of a comrade.
Terra Atlantus	Help SG-1 win the Battle of Antarctica.
The Great Gabber	Talk with a Jaffa warrior, an armored Jaffa, and a Jaffa officer while disguised as S'virda.
The Unseen Team	Finish Mission 3 without causing an alarm.
Three Birds, One Drone	Kill three or more enemies with one hijacked drone.
Time and Again	Get caught in a time loop.
Under the Radar	Finish Mission 1 without causing an alarm.
Unmissed Opportunities	Discover all opportunities in Missions 1 to 7.
Without A Word	Finish Mission 5 without causing an alarm.