Warzone 2's The Haunting isn't all about jumpscares and supernatural beings. The limited-time event has a plethora of secret challenges, each promising unique in-game items as rewards. Being secret challenges, Call of Duty is yet to officially put out a list. However, the game's community has discovered all of them. There are a total of challenges currently that reward players with Blueprints, Loading Screen, Cards, and more.In this guide, we'll take a closer look at all the secret challenges in Warzone 2 The Haunting, how to complete them, and all the rewards you can earn by finishing these tasks.What are all the secret challenges in Warzone 2 The Haunting?The following are all the challenges in Warzone 2 The Haunting, along with their rewards:Challenge 1: Win 1 Match of Zombie Royale as a HumanThis challenge is pretty self-explanatory. All you have to do is to drop into a match of Zombie Royale and win it as a human.Reward: Made it Out Alive Weapon StickerChallenge 2: Win 1 Match of Zombie Royale as a ZombieSimilar to Challenge 1, however, you must win it this time as a Zombie.Reward: 'Unusual Escape' Animated EmblemChallenge 3: Win 10 Matches of Zombie RoyaleThis is going to take a few tries, but isn't impossible. You'll have to win a total of 10 Zombie Royale matches, either as a Zombie or a Human. As long as you get these 10 wins by the end of Warzone 2 The Haunting, you'll earn the reward.Reward: 'Apocalypse Survivor' Calling CardChallenge 4: Play 50 Matches of Zombie RoyaleEasy but can be a little time-consuming. All you have to do is play a total of 50 Zombie Royale matches.Reward: 'Witch's Ritual' Loading ScreenChallenge 5: Encounter five Jump Scares when using the Haunted BoxFor this challenge, it is recommended to play Zombie Royale. Anytime a Zombie is eliminated, they will drop a Haunted Box. Simply pick it up and proceed to use it. However, it is worth noting that the Haunted Box will not always present you with a jumpscare and will take a couple of tries until you get all five of them.Reward: 'Boo!' Calling CardChallenge 6: Win a match without dyingProbably one of the toughest challenges on the list, to unlock the Undead Runes, you must win a complete match without dying. This can be in any playlist. As long as you win without dying, you'll complete the challenge. It is advised to play BR Solos or Duos as your chances of avoiding confrontation until late game are quite high.Reward: 'Undead Runes' Weapon DecalChallenge 7: Run over a ZombieAs simple as it gets, you must run over a Zombie (be it a real player or AI) using a vehicle. Doing so will award you with the 'Apocalypse Ready' Vehicle Skin. Your best is to play Zombie Royale to complete this challenge, as if you summon them at the altar in DMZ, the altar renders the vehicle unfit for driving.Reward: 'Apocalypse Ready' Vehicle SkinChallenge 8: Tag 20 enemies with the Bloodseeker grenadeThis is pretty straightforward as well. All you have to do is tag 20 enemies with the Bloodseeker grenade. However, what makes it challenging is that these enemies must be real players. That said, these grenades can be used on the same enemy multiple times. Hence, you can use them on a knocked-down player repeatedly to progress your total count.Reward: 'You Can’t Hide' Calling CardChallenge 9: Complete the Chess Board’s Easter EggTo complete the Chess Board’s Easter Egg in Warzone 2 The Haunting, head to the Museum POI on the Vondead playlist and find the life-size chess set located just outside the main hall. A black Knight would be missing from the board. Find this piece and guide it back to the chess board to complete the challenge.Reward: 'Checkmate' Weapon CharmChallenge 10: Complete the Witch's Book Easter EggTo complete this challenge, you must play the Vondead playlist. Simply drop into the Graveyard POI and interact with the book inside the small hut located in the easternmost part of the area. Now navigate to the windmill, and you'll find the Witch's Stick SO-14 Blueprint floating mid-air. Collect it to complete the challenge.Reward: Witch's Stick SO-14 Weapon BlueprintThat covers everything about the secret challenges and rewards in Warzone 2 The Haunting. All these items are up for grabs for a limited time only. Once the event concludes, they will be gone forever.Follow Sportskeeda's Call of Duty hub for the latest news about Modern Warfare 2, MW3, and Warzone 2.