Having finished this quest YET AGAIN on another toon.... some things I found in guide you might want to update.....
1. Diedre (spl) gives you the frequency for the gun as .00002198, round up to .000022 when asked by NPC to fix gun.
2. When deleting the files from the first hack, you might want to add this spoiler alert:
**SPOILER ALERT***
Shortest conversation path:
<Vanguard Node 19>
Click on Run?óÔé¼?ª
Click on Link Node 2.3
Then click on Node 20
Give: Hacked Vanguard Node 19 Access Card
Click on Accounts?óÔé¼?ª
Click on Query
Open Uncle Bazzit's
Click on Purge User?óÔé¼?ª
Click Yes.
Click on Accounts again?óÔé¼?ª
Click on Print?óÔé¼?ª
Receive: Vanguard Node 19 Logs