Modern Warfare MP5 Secret Nerf Apparently Added in Season 5 Reloaded

Despite the recent announcement of Call of Duty: Black Ops Cold War and this weekend's upcoming CDL Championship Weekend, Call of Duty fans are focused on a mysterious and unannounced change to the MP5.
The MP5 SMG is one of the best weapons in Warzone. Low recoil, high damage, and decent range have made the MP5 a consistently solid weapon choice. Thus, many players are reacting to an unspecified change that seems to have been made to it in the recent Modern Warfare and Warzone Season 5: Reloaded update.
Looks like the gun is more in your face but the sight kinda looks the same. But like why change it at all right now ?
— FaZe Easy Mac | AO (@Its_EasyMac) August 25, 2020
In the above tweet, Atlanta Faze's analyst, Easy Mac, provides a picture of how the gun looks different when aiming down the sights after the update. Although miniscule, it does seem like an odd change to make so close to Championship Weekend.
Feels weaker, recoil pattern has changed. 1 week before champs... pic.twitter.com/bWOYbHUxGJ
— Max Alexander (@max01491126) August 25, 2020
Skrapz, professional player of the London Royal Ravens, initially noticed the change and mentioned that the MP5 is now "bouncing all over the gaff." Other players are experiencing more major changes to the MP5. Many are claiming that the SMG now has much more intense recoil and puts out less damage.
Whatever happened with the MP5, it appears it won't be fixed until after the CDL Championship Weekend.
So the mp5 isn’t getting reverted for playoffs. Lol
— Seth Huntsmen (@scump) August 26, 2020
Although Infinity Ward hasn't commented on this dilemma, pro player Seth "Scump" Abner of the Chicago Huntsmen confirms that a change has been made, and that it won't be reverted this week.
The Call of Duty League Championship Weekend kicks off Saturday, Aug. 29.
Are you a Call of Duty fan? Tune in Aug. 29-30 to watch the exciting conclusion of the Call of Duty League postseason and see who takes home the Championship, exclusively on YouTube.com/CODLeague.