Activision is set to make a big announcement this week, as Call of Duty: Modern Warfare Iii will be revealed within the popular game, Call of Duty: Warzone. Players who participate in a special in-game event called Shadow Siege will have the opportunity to earn some exciting rewards.

The rewards up for grabs in the event include a battle pass tier skip, the Crimson Sound calling card, and a Konni Group emblem. Additionally, players can unlock a new weapon, the M13C assault rifle. All of these items will be available for use in both Modern Warfare II and Warzone immediately following the August 17 event.

A double XP event in Warzone will kick off on August 17 at 9:30 AM PT / 12:30 PM ET, just before the start of the Shadow Siege event at 10:30 AM PT / 1:30 PM ET. While Activision has kept the specifics of the event “shrouded in secrecy,” they did share a message from fictional Commander Philip Graves from Modern Warfare II, setting the stage: “This is an airborne to ground assault of the Konni-occupied Zaya Observatory.”

Shadow Siege Rewards

• Konni Group emblem
• Crimson Sound calling card
• Battle token tier skip
• Gas Canister weapon charm
• Serpent Slayer vehicle skin
• M13C assault rifle

As part of the event, players will join Shadow Company to fight against Konni forces and secure chemical weapons before it’s too late.

In other news, Activision has confirmed that most of your purchases, Operators, and even weapon levels will carry over to Modern Warfare III upon its release on November 10.

Microsoft is currently in the process of acquiring Activision Blizzard and the Call of Duty series, but the deal is still pending. Even if the deal is completed, Call of Duty will remain available on PlayStation for at least the next decade.

For more information on Modern Warfare III, be sure to check out GameSpot’s comprehensive breakdown.