Kill all enemies from a single area.

Help SG-1 win the Battle of Antarctica.

Stun 5 or more enemies with one Stun Grenade.

Experience the loss of a comrade.

Climb the giant tree.

Finish Mission 1 without causing an alarm.

Finish Mission 2 without causing an alarm.

Complete a mission without killing anyone.

Complete any mission without being spotted.

Kill 3 or more enemies with one hijacked drone.

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

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

Get caught in a time loop.

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.

Eliminate all reinforcements called in during an alarm.

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.

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.