I’ve spent a lot of time working my way through the questline for the Crimson Fleet faction, so I can tell you that they have a wide range of powerful and exciting weapons at their disposal. Sure, you might have to steal some. You might have to pay a few credits. But at the end of the day, as a space-faring pirate, you’re often better equipped than the UC Vanguard. A unique rifle available only during this questline is Tempest, but it’s not as you think. How to get Tempest in Starfield!
Tempest in Starfield: Where to Get It
After taking on Delgado and looting his corpse, you can collect Tempest. You have to follow the Crimson Fleet/UC SysDef questline until the very end, then choose UC SysDef over Delgado and his crew.