Treyarch just released a new update to the game's settings, for all platforms, addressing numerous bug fixes and issues while also updating certain weapons and playlists. Starting off with multiplayer most changes seemed to be revolved around some gameplay elements with a few miscellaneous like spelling mistakes etc. In addition, Zombies also had a few game breaking and crashing bugs fixed and some gameplay related issues resolved.
Among other things, Treyarch has kicked off their first 2X Tier Boost Weekend in Multiplayer and Blackout, along with 2X Nebulium Plasma in Zombies on all platforms for which you can find more info here.
Moreover, as the crown's jewel for this update Blackout received extensive tuning in weapon classes and also having the 9-bang flash grenade removed. The Blightfather event is now live across all platforms and for all three game modes that blackout has to offer.




To quote from Treyarch about the event:


Patch Notes

Blackout

• Playlist Updates
  
  • Blightfather added to all playlists.
    
  • 100-Player Quads added to the Featured Playlist.
    
  • Maximum players in Solo and Duos playlists changed to 88.
  
  
• Character Missions
  
  • Zombies Chaos Storyline Character Missions now available (Bruno, Diego, Scarlett, and Shaw).
    
  • Increased drop rates of Character Mission items.
  
  
• Weapons (Blackout Only)
  
  • Submachine Guns
    
    • Increased muzzle velocity on all SMGs. This should provide more consistent gunfights when in SMG range, along with ensuring that SMGs perform as expected in their intended power band when compared to Assault Rifles in Blackout.
      
    • Spitfire
      
      • Reduced recoil.
    
    
  • Assault Rifles
    
    • Rampart 17
      
      • Reduced ADS sway.
        
      • Reduced recoil.
    
    
  • Tactical Rifles
    
    • Auger DMR
      
      • Increased re-center speed. We slowed down the re-center due to high performance in our Blackout beta, but have seen the AUGER slightly underperform since release.
        Slightly increased muzzle velocity. This should make for more predictable shots when firing at a moving target within the Auger’s intended ranges.
      
      
    • Swordfish
      
      • Tightened the spread pattern. This should allow more shots to land on target at range.
    
    
  • Light Machine Guns
    
    • While some players have found success with the LMGs in Blackout, they’re still being passed over by the large majority of players. These changes should help make LMGs more manageable when providing cover fire or engaging targets at range.
    
    
  • Titan
    
    • Increased re-center speed.
      
    • Reduced re-center pattern offsets for more predictable recoil.
    
    
  • VKM 750
    
    • Increased re-center speed.
      
    • Reduced re-center pattern offsets.
    
    
  • Hades
    
    • Increased re-center speed.
      
    • Reduced re-center pattern offsets.
  
  
• Equipment (Blackout Only)
  
  • 9-Bang
    
    • Removed the 9-Bang from Blackout while we evaluate its place in the gameplay loop.
    
    
  • Concussion Grenade
    
    • Increased throw distance.
      
    • Increased stack count to 2.
      

For the full list of notes as well as more changes and info about this update you can go here: Treyarch