So this guide will cover the mission itself but also contain spoilers to avoid at least 3 play throughs.... All my guide will have spoilers on missions but not results so use at your own disgression.
*** Spoiler - click to reveal *** MAIN STORY QUEST CANT BE MISSED!!!
1. BoS - Outside The Wire
2. Railroad - Underground Undercover
3. Minutemen - Inside Job (don't even bother you're already done with all their quests)
Now onto the quest details itself.
- Virgil will tell you to infiltrate the Institute (bring energy weapons). You're heading to C.I.T. to pick up a signal from your Pip-Boy. Head to Glowing Sea, Head Northeastish into Cambridge. Set your Pip-Boy to radio pick up signal. It will go off stronger and stronger as you get closer. It's the Green rusty building. You will fight gunners and some militia. Then an unknown faction at the top. You will talk to the Courser this ends with a fight take the chip. End of quest