Here is the full list of all 33 Defiance 2050 achievements.
Kill 10,000 enemies
Complete 4 weekly contracts
Complete 20 pursuits in the Bay Area
Equip your first legendary weapon
Get to EGO level 50
Jump a total of 5 kilometers with vehicles
Complete 25 Sieges
Complete 10 pursuits in the Bay Area
Complete 10 major arkfalls in the Bay Area
Max out a class
Cross the Golden Gate Bridge
Complete a daily contract
Get to EGO level 10
Complete your first pursuit in the Bay Area
Revive another player outside the tutorial
Fully upgrade a class ability
Complete your first major arkfall in the Bay Area
Complete your first minor arkfall in the Bay Area
Complete the tutorial
Complete all other achievements
Kill Nim
Complete a co-op map
Complete all co-op maps
Max out reputation with 1 faction
Get max reputation with Von Bach Industries, Soleptor Enterprises, Top Notch Toolworks and EchelonMax out reputation with 4 factions
Max out 4 classes
Teach level 20 in any weapon skill
Capture 50 points in Pvp
Kill 100 players in PVP
Complete the "Thorn Liro Thawandaye II" Pursuit
Kill the Volge Warmaster and a Volge Huntmaster
Complete the "The Defiant Few II" pursuit
Complete "The Lion's Claw II" pursuit