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How to Unlock the Sai in Black Ops Cold War and Warzone

Complete an in-game challenge to unlock the Sai in Call of Duty: Black Ops Cold War and Warzone!

An all-new melee weapon is available now in Call of Duty: Black Ops Cold War and Warzone. The Sai is a dual-wield sword-like weapon, capable of strategic, 1-hit kills. Across all Warzone, Multiplayer, and Zombies, players can get their hands on the Sai via the ongoing event, in-game challenges, or a Store Bundle - starting today.

Not a fan of melee weapons? Season Six is just around the corner with all-new ranged weapons.


Dual wield melee. Famous for its use in the Japanese martial art of Ninjutsu. Lightweight and versatile with fast attacks. 2-hits to kill from the front with 1-hit backstabs.
Sai - Call of Duty: Black Ops Cold War and Warzone

The Numbers Event

Those who complete all nine challenges within Warzone OR Black Ops Cold War during the event will receive a new functional melee weapon: the Sai.

All Challenges and Rewards for the Numbers Event in Black Ops Cold War and Warzone
Embrace Perseus’ broadcast and be rewarded in the Numbers event in Call of Duty: Black Ops Cold War and Warzone.
See all challenges and rewards in the Numbers event

Unlock Challenges

Warzone & Multiplayer

  • Using a Melee weapon, kill an enemy without receiving returning fire in 15 different completed matches.


  • Using a primary Melee weapon, earn 150 Butcher Medals (5 rapid Melee kills).


If you'd prefer to skip the line and immediately unlock the Sai, you can purchase a Bundle from the Store which contains a Blueprint for this weapon. Upon doing so, you will be granted immediate access to the Blueprint, however, you will need to complete challenges to unlock the base weapon.

Spectral Sai
Introducing the first Legendary Blueprint for the Dual Sai Melee Weapon. Adapt and overcome any opponent with the Spectral Sai Bundle.

Stay tuned to @CODTracker on Twitter for full Call of Duty coverage, including the latest Warzone news.

If you're new to Call of Duty Tracker, you should know that we also offer free services such as player statistics, leaderboards, and a cosmetics database. Consider checking us out and let us know on Twitter what you'd like to see next!


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