Z8N-TP

Accept the Mission: You can pick up the Z8N-TP mission in Tycho's Ribs during 'The Beginning of the End' quest. Look for a jump pad near an elevator that leads to a side area with the NPC. The mission is available at level 27.

Gather Elemental Weapons: Before you head out, make sure you have at least one weapon of each of the four elemental types: shock, cryo, burn, and corrosive. They don't need to be powerful; the goal is just to inflict the elemental effect.

Travel to Eleseer: The 'putti' you need are obtained from Opha Guardians, which are found in Eleseer, the final area of the game. You'll naturally visit Eleseer while progressing through the main story mission 'The Beginning of the End', so you can tackle this side mission then.

Farm Opha Guardians: Once in Eleseer, make your way to the end of the first path you encounter. Here, you'll find an Opha Guardian that continuously spawns. Your objective is to collect four different kinds of elemental 'putti'.

Collect the Putti: To get the 'putti', you need to damage the Opha Guardian with one of your elemental weapons to inflict its specific status effect. After applying the effect, melee the Opha until it drops the 'putti' of that element. Repeat this process for all four elements (shock, cryo, burn, corrosive) until you have two of each.

Return to Z8N-TP: Once you've collected all the required elemental 'putti', head back to Z8N-TP in Tycho's Ribs.

Defeat the Corrupted Putti: Upon returning, Z8N-TP will have a problem: the 'putti' you collected will become hostile and start attacking! You'll need to destroy all of them.

Finish the Mission: After clearing out the corrupted 'putti', talk to Z8N-TP one last time to complete the mission.