It still has 365 attack Making guns still useful all the way to level 37 missions And even at 38 they will still do damage, but [i]slightly[/i] less damage than the new guns Having your gun to level 38 from 34 isnt useless And you will still be doing strike playlists, and the weeklies and nightfalls (which obviously wont be at level 40) so you can use your gun there The ONLY time you are gonna want a new gun is for the last missions, and the raid itself So imo, guns arent totally useless [spoiler]Scrub![/spoiler]