10 A Personal TouchModify a weapon.
10 Always PreparedObtain two non-customizable suits of armor.
10 Bringer of WarChase down an assassin.
10 BruiserKill 100 enemies with melee attacks.
10 Eye of the HurricaneKill a brute while it's charging you.
10 Giant KillerDefeat a harvester.
10 HijackerHijack an Atlas mech.
10 Mail SlotKill 10 guardians with headshots from the front while their shields are raised.
10 RecruitKill 250 enemies.
10 ShopaholicVisit a store in the single-player campaign.
10 UntouchableEscape a Reaper in the galaxy map.
15 Almost ThereReach level 15 in multiplayer or level 50 in single-player.
15 ExplorerComplete three multiplayer matches or five N7 missions.
15 Fact FinderDiscover an enemy's monstrous origin.
15 Hard TargetCall down an orbital strike.
15 LiberatorStop a Cerberus kidnapping.
15 MobilizerBring a veteran officer aboard.
15 Overload SpecialistOverload the shields of 100 enemies.
15 Party CrasherSabotage a dreadnought.
15 PathfinderExplore a lost city.
15 Problem SolverEvacuate a scientific facility.
15 PyromaniacSet 100 enemies on fire with powers.
15 SaboteurDisable a group of fighter squadrons.
15 Sky HighLift 100 enemies off the ground with powers.
15 SoldierKill 1,000 enemies.
15 Tunnel RatSurvive the swarm.
15 Well ConnectedSend a warning across the galaxy.
15 World ShakerDestroy an Atlas dropped from orbit.
20 Tour of DutyFinish all multiplayer maps or all N7 missions in single-player.
25 ArbiterWin a political stand-off.
25 Battle ScarredPromote a multiplayer character to the Galaxy at War or import an ME3 character.
25 Combined ArmsPerform any combination of 50 biotic combos or tech bursts.
25 DefenderAttain the highest level of readiness in each theater of war.
25 ExecutionerDefeat an old adversary.
25 FocusedEvolve any of your powers to rank 6.
25 GunsmithUpgrade any weapon to level 10.
25 Last WitnessExtract ancient technology.
25 Lost and FoundDispatch 10 probes to retrieve people or resources in Reaper territory.
25 ParamourEstablish or rekindle a romantic relationship.
25 PatriotMake the final assault.
25 Peak ConditionReach level 20 in multiplayer or level 60 in single-player.
25 VeteranKill 5,000 enemies.
5 DrivenReturn to active duty.
5 EnlistedStart a character in multiplayer or customize a character in single-player.
5 TouristComplete one multiplayer match or two N7 missions.
50 LegendMission accomplished.
50 Long Service MedalComplete Mass Effect 3 twice, or once with a Mass Effect 2 import.
50 Master and CommanderDeliver most of the Galaxy at War assets to the final conflict.
50 UnwaveringFinish all multiplayer maps on Gold or all single-player missions on Insanity.
75 InsanityFinish the game on Insanity without changing difficulty after leaving Earth.