The recent Call of Duty Modern Warfare and Warzone patch fixes some of the bugs. In detail, the FAMAS underbarrel glitch is gone now. On the other hand, Bruen does less upper torso damage.
The launch of Season 5 has brought some problems on its own. Particularly, the FAMAS shotgun attachment that is just an underbarrel expansion could deal great damage. In other words, regardless of your armor level, a FAMAS shotgun attachment could kill you at 15 meters with a single shot. Therefore, the developers optimised this patch to stop players from exploiting it.
Moreover, it appears that the developers are not convinced with the nerf they applied on the Bruen MK9 LMG. Conversely, they decreased its upper torso damage. Furthermore, the gun has a greater recoil potential, which makes precise shooting a must. If you favor putting a 60-round mag on it, your recoil trajectory will be greater.
The Warzone patch fixes the new ISO SMG too. In particular, the developers decreased the movement penalty that occurs for drum mag attachment. Furthermore, the gun received an increase in its base ADS speed. Also, 725 has received another nerf for its sawed-off mode. The gun will have worse ADS speed, movement speed, and close range damage.
Call of Duty Warzone