Reach the point in the main story where you are at the rooftop conversation with Johnny Silverhand before the final mission
Keep Johnny’s relationship high by choosing supportive dialogue options throughout his side quests and main story conversations
Complete Johnny’s side quest line, especially Chippin’ In
During Chippin’ In, choose the specific dialogue options that show trust and forgiveness
At the oil fields, pick the correct lines:
“Nah, fucked that up too.”
“What do you want from me?”
“OK. But as second chances go, this is your last.”
“You were a real dick in the beginning.”
“When you said you let down your friends…”
“Yeah, I’ll call Rogue.”
On the rooftop, wait without choosing any dialogue option
Keep waiting for several minutes until Johnny offers the secret solo assault option
Choose the secret ending option to go in alone
Be prepared for a very difficult final mission with no backup
Save before starting the ending route in case you want to retry