Infinity Ward has released a new hot fix for Ghosts which added the new Infected classes and the Heavy Duty mode.

The hot fix also has balanced the snipers a little more, and fixed some exploits. This new fix is live now on Xbox One, PS4, PS3, PC, and Xbox 360.

New Features:

 Weapon Balance:

    • Reduction in the flinch benefit of the Focus perk for Sniper Rifles.
    • ADS speed reductions and further adjustments to Sniper Rifle settings.

Additional Fixes:

    • Field Order adds 100xp on pickup.
    • Fix for unlimited perks.
    • Invisible exploit fix.

SOURCE: Infinity Ward