Can I play modern warfare III on multiple accounts

Activision typically blocks sharing call of duty specifically to prevent many people from sharing one copy.

Modern Warfare III is not a free game, it’s a paid one.
At the moment, Warzone and Modern Warfare III are different games, and every online mode on Modern Warfare III requires a Game Pass Core subscription. (Live Gold)

Vault edition upgrade the 30 dollar one doesn't apply to disks

As It's locked to accounts only

It only applies to digital copies and only to the purchasing account

You would have to pay for the 100 dollar vault edition or since you already bought the upgrade you now have to buy the digital copy of the regular game

It does not apply to battlepass

Battlepass is a seperate purchase

This is because its locked to the copy that was bought

Only the purchasing acocunt has access to vault

NO

10/18/23

Call of Duty: Modern Warfare III Editions FAQA breakdown of the different editions of Call of Duty: Modern Warfare III, including pre-order incentives and cross-gen options for consoles

Players looking for the BlackCell (Battle Pass, COD Points, and Tier Skips) included in the Vault Edition can access this content in Call of Duty: Modern Warfare III when Season 01 begins in early December.

Call of Duty®: Modern Warfare® III continues the story of Task Force 141 following the events of 2022’s Call of Duty®: Modern Warfare® II, introducing an epic new global storyline as well as the return of the ultranationalist war criminal Makarov.

Co-developed by the three main Call of Duty® studios – Infinity Ward, Treyarch, and Sledgehammer Games – for the first time in franchise history, Modern Warfare® III includes a heart-pounding Campaign, adrenaline-filled, world-class Multiplayer, and a brand-new open world Zombies experience.

Call of Duty: Modern Warfare III is available now for pre-order on Xbox Series X|S, PlayStation 5, Xbox One, PlayStation 4, and pre-purchase on PC through Battle.net and Steam.

Pre-order or pre-purchase any digital or physical edition of the game and get Early Access to the Call of Duty: Modern Warfare III Open Beta*. Stay tuned for more details about the Open Beta*.

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Digital Pre-Order Bonuses

Campaign Early AccessPre-order any digital edition and get up to one week of Early Access to the entire Call of Duty: Modern Warfare III Campaign. Stay tuned for more details.



Soap Operator Pack ‡


Instantly unlock the Soap Operator Pack for use in Call of Duty®: Modern Warfare® II and Call of Duty®: Warzone™. Also available in Modern Warfare III at launch.

• Masked Soap Operator Skin
  
• Unmasked Soap Operator Skin
  
• Shadow Siege Weapon Blueprint
  

Captain Price “Skirmisher” Skin #


Players who pre-order any digital edition of Modern Warfare III will receive the Captain Price Skirmisher Skin for use in Call of Duty®: Mobile.

Once Modern Warfare III launches, players will need to play one match in Modern Warfare III by November 15 to be eligible to receive the Price Skirmisher Skin.

The Price Skirmisher Skin will then begin rolling out to in-game mailboxes for eligible players starting November 30. Please wait until December 7 before reaching out to Activision Support.

Please note: a digital edition of Modern Warfare III must be pre-ordered on a platform using an Activision account that is also linked to Call of Duty: Mobile.

Vault Edition

Available on all platforms, the digital-only Vault Edition offers the most content of any version of Call of Duty: Modern Warfare III.

In addition to the base game – Digital Cross-Gen version on consoles and Standard Edition on PC – Early Access to the Call of Duty: Modern Warfare III Open Beta*, and up to one week of Early Access to the entire Call of Duty: Modern Warfare III Campaign, the Vault Edition includes the following bonus content.

Hello Gio,

Thank you for posting in Microsoft Community.



To answer your question, no because you will still need the base game to unlock the upgrade contents.

Redemption of the upgrade contents (Vault Edition Upgrade) would require Call of Duty: Modern Warfare III digital Cross-Gen Bundle in which sold separately.

Support article for reference:

Buy Call of Duty®: Modern Warfare® III - Vault Edition Upgrade | Xbox

Call of Duty: Modern Warfare III: Detailing all Game Editions and Pre Order Benefits

Your brother may purchase the upgrade for his account.



Sincerely,



Microsoft Community Moderator

Modern Warfare III at the moment, but I'm slowly bouncing between RAGE, Dead Space II, Forza III, Saint's Row III and Halo 3.