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