Below is a walkthrough for the Diplomatic Relations side quest in Tiny Tina’s Wonderlands. To obtain this quest, interact with the poster in Drowned Abyss.
Talk to Quimble in Drowned Abyss
Make your way to Quimble in the southern part of the area.
Repel Coiled assault
Defeat all the enemies.
Report back to Quimble
Head back to Quimble and speak with him.
Catch up to Claptrap
Follow the objective to reach the missile spewing green stuff.
Explode 3 barrels
Shoot the barrels next to the rocket.
Talk to Claptrap
Speak with him.
Kill Coiled
Defeat the enemies as they did not like Claptrap’s speech.
Meet Claptrap near peaceful flowers
Follow the objective to find Claptrap.
Frolic and jump around the flowers
Jump in circles!
Talk to Claptrap
Speak with Claptrap to watch his peace attempt.
Kill some more Coiled
Defeat the enemies!
Meet Claptrap near pirate ship
Head nearby to the pirate ship.
Hit 3 someones
Melee Claptrap 3 times!
Smack that booty
Melee the chest behind Claptrap.
Talk to Claptrap
Speak with Claptrap to watch his negotiation attempt.
Follow Claptrap
Follow Claptrap to a new area and listen to him negotiate.
Kill Coiled
When the negotiations fall through again, defeat the enemies!
Find Claptrap
Follow the objective through the newly opened door to find Claptrap. Defeat all the crabs around him.
Dislodge Claptrap
Melee him!
Talk to Quimble
Return to Quimble and speak with him to complete the quest.