Will Activision give credit to Brandon Herrera for using his custom gun creation in the latest season of Call of Duty: Modern Warfare III?
Brandon Herrera, a well-known YouTuber and firearm expert, has claimed that the creators of Call of Duty: Modern Warfare III used his custom-designed firearm, the AK-50, in the season 5 of their latest game without his permission. The in-game weapon, called the JAK Cataclysm, bears a striking resemblance to his AK-50, leading to discussions within both the gaming and firearm communities. In a recent video on his YouTube channel, Herrera presented evidence suggesting that the JAK Cataclysm in the game closely mimics his unique creation.
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Brandon Herrera, often referred to as “The AK Guy” online, is recognized for his expertise in firearms, particularly those related to the AK-47. He has built a significant following on YouTube, where he shares content about gun reviews and custom builds. One of his major projects is the AK-50, a .50 BMG rifle based on the AK platform, which he has showcased in a series of videos. The gun has become well-known among his followers as a representation of his technical skill and ion for firearm innovation.
In his latest video, Herrera points out the similarities between his AK-50 and the JAK Cataclysm featured in Call of Duty: Modern Warfare III season 5. “It’s not just similar,” Herrera states. “It’s a direct recreation of the AK-50 that I built. They’ve changed the name to JAK Cataclysm, but the design, look, and portrayal in the game are nearly identical to my creation.” He goes on to compare the in-game weapon with his real-life AK-50, emphasizing the features that make his design unique and showing how these elements have been replicated in the JAK Cataclysm.

While video games often include fictional or modified versions of real-world weapons, the similarity between the JAK Cataclysm and Herrera’s AK-50 has led to speculation. “This isn’t just inspiration,” Herrera claims. “They copied it down to the smallest detail.” He also notes that the game developers may have misrepresented some of the gun’s key characteristics. “They’ve got some of the mechanics wrong,” Herrera explains. “For example, the recoil and firing mechanism they’ve depicted don’t reflect how this type of weapon actually works. It’s misleading to gamers who might assume the JAK Cataclysm’s representation is accurate.”
Gamers have also noticed these discrepancies, with some expressing their confusion and disappointment on social media. “It’s clear that whoever added the JAK Cataclysm into the game didn’t fully understand what makes the AK-50 unique,” one player commented on a popular gaming forum.

The situation raises questions about intellectual property in video games, particularly concerning the rights of content creators. Herrera has not indicated whether he plans to take legal action but emphasizes that his main concern is respect and recognition for his work. “This is something I poured years of my life into, and to see it used without acknowledgment, under the name JAK Cataclysm, is disappointing,” Herrera says in his video.
As of now, neither Activision, the publisher of Brandon Herrera, a well-known YouTuber and firearm expert, has claimed that the creators of Call of Duty: Modern Warfare III used his custom-designed firearm, the AK-50, in their latest game without his permission. The in-game weapon, called the JAK Cataclysm, bears a striking resemblance to his AK-50, leading to discussions within both the gaming and firearm communities. In a recent video on his YouTube channel, Herrera presented evidence suggesting that the JAK Cataclysm in the game closely mimics his unique creation.