(Similarly, titles can be applied to weapons which violate the conditions which need to be met in order to apply said titles.) What this means is that a weapon with a very low tech level can be generated with a very high proc rate, which is of course nonsensical according to Borderland’s rules.
Namely, a weapon must spawn with all of its parts at a single time inside of Fallout 4, which means that things like titles and - most importantly - proc rates must also be applied at the time that a weapon is spawned. There are differences, as one would expect between how weapons are generated between the two games.