Wilbo T Baggins

Firstly, apologies for sounding like a broken record as I'm sure enough this topic has been previously posted uncountable times. I have been playing the recent updated DLC playlist which I assume is aimed at those of us who are looking to gain those final few achievements that have been previously unattainable due to no DLC maps in the map rotation on matchmaking for the last few months prior to this revamped playlist. I heard that this playlist was back on so I have blitzed through the remaining achievements and have one remaining. Ashes to ashes. I've read through all of the previous forums regarding this achievement and by the sounds of things it is a common problem that this achievement just doesn't unlock. I have tried :- Incineration Cannon Binary Rifle Scattershot Pulse Grenades (including pulse grenading dead bodies) Nothing works. I've seen 343 come out and say we're trying to resolve the issue. But that is all I've heard for months. No sign of a patch. No sign of any answer. I love Halo and thus far have all achievements in all of their games. (Not including Wars and Spartan Assault) So understandably this one is driving me crazy! Is there any chance this can finally be resolved please 343? Forgot to mention... I have also tried recovering my gamertag, deleting playlists and reinstalling them, deleting the game and reinstalling it... To no avail.