Save every tiefling refugee you can throughout the game in a single playthrough.

Recruit a hireling. You can befriend them or use them as cannon-fodder - we won't judge.

Complete 5 Contracts in the High Threat Zone in a single deployment in MWZ

Have 9 perks active at the same time in MWZ

Revive a player from a different Squad in MWZ

Kill 500 Enemies using an Insured Weapon in MWZ

ME3: Set 100 enemies on fire with powers.

ME3: Destroy an Atlas dropped from orbit.

ME3: Bring a veteran officer aboard.

ME3: Modify a weapon.

ME3: Chase down an assassin.

ME2: Complete 5 missions discovered by scanning unexplored worlds