Infinity Ward has released a new hot fix for Ghosts which added the new Infected classes and the Heavy Duty mode.
- Reduction in the flinch benefit of the Focus perk for Sniper Rifles.
- ADS speed reductions and further adjustments to Sniper Rifle settings.
- Field Order adds 100xp on pickup.
- Fix for unlimited perks.
- Invisible exploit fix.
SOURCE: Infinity Ward