Finish Mission 1 without causing an alarm.

Finish Mission 2 without causing an alarm.

Finish Mission 3 without causing an alarm.

Finish Mission 4 without causing an alarm.

Finish Mission 5 without causing an alarm.

Finish Mission 6 without causing an alarm.

Finish Mission 7 without causing an alarm.

Finish Missions 1 to 7 without causing an alarm.

Complete any mission on Hard difficulty.

Complete a mission without killing anyone.

Complete any mission without being spotted.

Kill all enemies from a single area.

Eliminate all reinforcements called in during an alarm.

Kill 3 or more enemies with one hijacked drone.

Kill 4 or more enemies with a single burst of Submachine Gun fire.

Stun 5 or more enemies with one Stun Grenade.

Discover all opportunities in Missions 1 to 7.

Lure enemies with a Whistle while using Camo 15 times.

Heal your comrades 10 times.

Use the Chitchat skill 35 times.

Use the Steal skill 25 times.

Hide 50 bodies in bushes.

Throw 40 bodies from precipices.

Hit a target from a great distance with the Sniper Rifle.

Help SG-1 win the Battle of Antarctica.

Experience the loss of a comrade.

Get caught in a time loop.

Kill one of your team members with an opportunity.

Talk with a Jaffa warrior, an armored Jaffa, and a Jaffa officer while disguised as S'virda.

Climb the giant tree.