Certainly! Here's a rewritten version of the article on the "Rivals" event in Call of Duty: Black Ops 6 and Warzone, without links or emojis:

Black Ops 6 and Warzone: Rivals Event Overview

The "Rivals" event in Call of Duty: Black Ops 6 and Warzone is a limited-time crossover that introduces a series of challenges and rewards, allowing players to engage in themed gameplay across various modes.

Event Start and Duration

The event commenced on June 1, 2025, and is scheduled to conclude on June 15, 2025.

Event Mechanics

Players participate in the event by completing specific challenges within the game's multiplayer, Zombies, and Warzone modes. These challenges are designed to test players' skills and adaptability across different gameplay styles.

Rewards

Upon completing event challenges, players can unlock a variety of exclusive rewards. These include themed cosmetic items such as operator skins, weapon blueprints, calling cards, and charms. Additionally, players can earn in-game currency and experience boosters to enhance their progression. 

Conclusion

The "Rivals" event offers players an opportunity to engage in themed challenges and earn exclusive rewards, enriching the Call of Duty: Black Ops 6 and Warzone experience. Participants are encouraged to complete the event challenges before the conclusion date to maximize their rewards.

If you need further information or details on specific aspects of the event, feel free to ask!