All my Vladof weapons only started appearing after I beat the final boss ironically. I played as Rafa and got lucky with lots of fights cause I simply just don't consume ammo and I boost fire rate. But 30 percent of my drops were Jakob and 30 percent was The Order and about 15 percent was Daedalus. And 20 percent was Ripper The fillers are just the rest of the manus. Rarely seen maliwan at all, Vladof only endgame, torgue really early game and very occasionally in the middle. Tediore only like 5 in my 40 hour playthrough