Halo 4 Weapon Tuning Updates direct from Waypoint
Starting Monday, June 3rd, the following updates will be applied to Halo 4 War Games Matchmaking:

Battle Rifle
•    The Battle Rifle damage has been increased.
•    The Battle Rifle is now capable of killing in four bursts.
•    The Battle Rifle rate of fire has been slightly decreased.
•    The Battle Rifle red reticle range (range at which auto-aim benefits kick in) has been decreased.
•    Two bursts from a Battle Rifle followed by a melee will now kill an opponent (2-shot melee).

Carbine  
•    The Carbine damage has been increased.
•    The Carbine is now capable of killing in seven rounds.
•    The Carbine accuracy has been increased (projectile spread decrease).
•    The Carbine red reticle range has been decreased.

LightRifle  
•    The LightRifle zoomed rate of fire has been increased.
•    The LightRifle un-zoomed rate of fire has been slightly decreased.
•    The LightRifle red reticle range has been increased to match the updated DMR range.

DMR  
•    The DMR red reticle range has been slightly decreased.

Assault Rifle  
•    The Assault Rifle damage has been slightly increased.
•    The Assault Rifle now kills in three less rounds.
•    The Assault Rifle auto-aim angle has been reduced.
•    The Assault Rifle projectile spread has been decreased.

Storm Rifle  
•    The Storm Rifle damage has been increased.
•    The Storm Rifle now kills in three less rounds.
•    The Storm Rifle auto-aim angle has been reduced.
•    The Storm Rifle projectile spread has been decreased.

Suppressor  
•    The Suppressor damage has been increased.
•    The Suppressor now kills in three less rounds.
•    The Suppressor auto-aim angle has been reduced.
•    The Suppressor projectile spread has been decreased.

SAW  
•    The damage has been increased to maintain double the damage-per-second of the Assault Rifle.

Magnum  
•    The damage has been slightly increased.
•    The Magnum is still capable of killing in six rounds.

Vehicles  
•    The damage has been increased on both the Mantis and Warthog Chain Gun.

Lastly, base player movement speed has been increased from 100% to 110% across all playlists and modes. All of these balance tweaks will be released this coming Monday in order to provide a more fast-paced, optimized matchmaking experience, and all of Halo 4’s applicable Matchmaking game types will be affected by this change. Team Snipers, Grifball, and Action Sack’s Rock N’ Rail will not see any changes, however, as the weapons in these game types are not affected. Some game types (such as Action Sack’s Lightning Flag), will not receive the change due to the preferred pace and balance in the current tuning. Moving forward, select game types in the Action Sack playlist may use alternate weapon tuning, and we will be sure to provide information on these game types when the time comes.