The Halo 4 title update has just gone live, The issues fixed are as follows -
* Enabled “X-Markers” on the HUD to designate when and where teammates are killed.

 * Updated Active Cammo to fully reveal players when they fire all weapons.

 *Reduced the auto aim, magnetism and damage on the Gauss Warthog.

 * Fixed an issue in which some players at SR-130 did not see their Specialization on their in-game Player Card.

 * Fixed various issues with ordnance navigation markers.

 * Fixed various join-in-progress issues with Flood.

 *Added the ability to make weapon adjustments via backend tuning.

 With these various issues being taken care of, What are you waiting for? Back to the battlefield Spartan!