Give Micro Fusion Cells to Chris to join the Enclave faction
From FOnline: 2238 Wiki
Go to Navarro and talk to Chris, the guy in purple robe. He will ask for 60 Micro Fusion Cells. After giving him what he wants, take the little path above between the trees and use the computer in the booth in front of the base entrance to confirm your integration.
Cost: 60 Micro Fusion Cells (50 Small Energy Cell if Cha is 10)
Reward: part of Enclave faction