The Who Constructs The Constructor? trophy in Borderlands: The Pre-Sequel is story-related and can't be missed.
You will unlock the trophy after completing the game's seventh story mission "Let's Build A Robot Army".
*** Spoiler - click to reveal ***- Go to train station
- Call train
- Wait for train
- Install Felicity
- Install Felicity
- Install Felicity
- Clear out Scavs
- Meet Gladstone
- Get to Titan Robot Production Plant
- Destroy powersuits
- Clear out Scavs
- Destroy window with cryo damage
- Turn on power
- Summon security bots
- Collect eye components: 0 / 4
- Go to Oculus Lab
- Place eye components: 0 / 4
- Collect completed oculus
- Open torso cage
- Install oculus
- Mount torso on crane
- Follow prototype body
- Go to turret shooting range
- Let turrets kill scavs: 0 / 12
- Attach turrets
- Install Felicity
- Escort Felicity
- Attach legs
- Follow prototype robot
- Turn rail system
- Head to diagnostics chamber
- Install Felicity
- Disable Felicity Rampant
- Return to Moxxi