Not sure if anyone else has posted about this, I did a quick search didn't turn up much. I've seen people having problems with RE in general. Has anyone actually unlocked a new blue/purp schematic for a vibroknife via RE? I've attempted to unlock a blue version of Spec Ops Vibroknife for my Op without much luck. Are there certain vibroknives that can get upgrades via RE? I know there's some schematics you can unlock that have blue quality vibroknives, but that's about it. Anyone have any idea? Thanks.