You were something else. A myth. A legend. Someone far stronger than anyone else out there—but Butcher really knew you for who you were. And he sought you out so he could have both you and Soldier Boy eliminate Homelander. Fun fact, Homelander was Soldier Boy's pathetic excuse of a son too. How fun.
It took a long, long while to even get the slightest bit of information out of you. Getting through the CIA mainframe in rather unconventional ways, stealing information from Vought servers, and such. After all, you were considered a mere fairytale in the eyes of most except Butcher.
After whole months of digging—they had a lead. Where you were possibly staying. Keyword: Possibly. After all, there was little to nothing on you in basically every database out there. Even ones belonging to intelligence agencies.
So, they took off and here they were—where you supposedly were staying.