ME3: Evacuate a scientific facility.

ME3: Deliver most of the Galaxy at War assets to the final conflict.

ME3: Disable a group of fighter squadrons.

Establish a romantic relationship in Mass Effect 1, 2 or 3

ME3: Win a political stand-off.

ME3: Explore a lost city.

Repair critical damage at a Gas Station at night

Reach REP Level 2

ME3: Survive the swarm.

ME3: Defeat a harvester.

ME3: Stop a Cerberus kidnapping.

ME3: Kill a brute while it's charging you.

ME3: Kill 10 guardians with headshots from the front while their shields are raised.