Burning Cover

Burning Cover is a quest in Fallout 4. It is the aftermath from failing Underground Undercover and becoming branded an enemy of The Institute.

Quick walkthrough
1. Report to Desdemona

2. Talk to Preston

Detailed walkthrough
This quest is fairly straightforward and only requires you to talk to two people.

Railroad HQ

You've blown your cover, and must speak to Desdemona for the next step. When talking to her, she explains that there is little hope for rescuing any synths now that communication with Z1-14 is lost, and that the Railroad numbers are too few to challenge the Institute directly. She instructs you to seek out (or requests help from) the Minuteman, as an army can be built up large enough to forcibly free the synths. Desdemona also thinks the Minuteman might be able to find another way into the Institute with the data you found in the holotape. You must now seek out Preston.

Depending on if you completed When Freedom Calls determines where your next destination is, and whether or not you can even turn in Burning Cover. Regardless, Preston is the last character you speak to for quest completion.