I was using the Vex today for a bounty. I have never actually used it in pvp before. I found at a certain range, my bullets would seemingly just disappear and not hit my target. I'm pretty dead on with my headshots, but it wasn't hitting anything. I did some searching and found a post where someone mirrored my observation and also asked some interesting questions. Typically when guns cross over to a different slot/class, they unfortunately get affected negatively by entire class changes. This happened to the Vex it seems with the last fusion rifle tuning and this is what caused the medium-range issue described above. So I wonder if Bungie even knows they are adversely affecting weapons like this and if they intend to do anything specific for Vex or Queen's breaker in the 2.0 update. Neither is mentioned in the notes specifically. I think the Vex needs fixed for the medium range issue, personally. I hope neither gun is further affected negatively by overall fusion rifle changes come 2.0. https://www.reddit.com/r/DestinyTheGame/comments/3dmgka/vex_mythoclast_uh_did_bungie_forget_about_this/