ME2: Fully upgrade a weapon

Kill 100 enemies with melee attacks in Mass Effect 1, 2 or 3

ME2: Gain the loyalty of the quarian

ME2: Gain the loyalty of the Assassin

ME2: Gain the loyalty of the Cerberus Operative

ME2: Gain the loyalty of the krogan

ME2: Gain the loyalty of the Professor

ME2: Complete the investigation of a derelict alien vessel

ME2: Successfully recruit the Justicar

ME2: Gain the loyalty of the biotic Convict

Use melee or ranged weapons to take both arms off a living enemy

Find the Outer Way boarding craft