This really needs to be fixed or at least made to get all of the weapons at some point. I've been grinding it for 3 weeks. Everyday I'd get the one schematic. In the past 3 weeks I've gotten 2 jackles, 2 niflheim, and the rest were 18 kelvins. It's the last thing I need for wayfarer and I can't get it because I can't get an obsolete auto rifle. Please, either help me understand how to get it or fix this B.S. RNG.