Call of Duty: Modern Warfare 3 and Warzone continue to add more Aftermarket Parts to its armory in Season 4 with the JAK Harbinger Kit that turns the M4 assault rifle into a .50 Cal sniper. Here is how to get the JAK Harbinger Kit in MW3 and Warzone.
How to Unlock JAK Harbinger Kit in MW3 and Warzone
![MW3 Warzone JAK Harbinger Kit](https://primagames.com/wp-content/uploads/2024/05/mw3-jak-harbinger-m4.jpg?resize=640%2C360)
The JAK Harbinger Kit can be unlocked by completing five Season 4 Week 1 challenges. The requirement will be in place until Season 4 ends, then players will have to unlock it from the Armory after the season is over.
There are a total of 21 Week 1 challenges to be completed among MW3 multiplayer, Zombies, and Warzone modes. Only five in the set need to be done to unlock the JAK Harbinger Kit. However, Call of Duty: Warzone Mobile players will have to spend Arsenal Coins in the Arsenal Store to unlock the Aftermarket Part.
Here are all the Season 4 Week 1 challenges that can be completed:
MW3 Multiplayer
- Get 40 Operator kills shortly after sprinting with recommended assault rifles
- Get 25 Operator kills with a recommended weapon after having recently swapped weapons
- Get 20 Operator kills sliding or midair kills with recommended assault rifles
- Get 20 Operator kills with iron sights equipped to a recommended marksman rifle
- Get 15 kills against Operators who are blinded or stunned with recommended assault rifles
- Get two long range throwing knife or sticky Operator kills
- Finish 10 matches with three or more players in your party
MW3 Zombies
- Get 300 kills while aiming down sights with a recommended assault rifle
- Get 300 kills with a Pack-A-Punched Recommended Weapon
- Get 200 kills with frost damage with a recommended assault rifle
- Get 150 kills with a recommended weapon after having recently swapped weapons
- Get 100 hipfire kills with a recommended SMG
- Get 100 kills with a melee weapon
- Get three Disciple kills with a recommended weapon
COD Warzone
- In Warzone Urzikstan, get 15 Operator kills in the North-West Region (Resort, Power, Seaport, Cargo)
- In Warzone Urzikstan, get 15 Operator kills in the Southern Region (City, Suburbs, Manor)
- In Warzone Urzikstan, get 15 Operator kills in the Eastern Region (Military Base or Farms)
- In Warzone Urzikstan, get 15 Operator kills in the Central Region (Old Town, Low Town)
- In Warzone, place in the top 10 seven times
- In Warzone, complete 15 contracts
- In Warzone, open 75 Loot Caches
For more on Season 4 across Modern Warfare 3 and Warzone, please check out how to get the Kar98K for some old-school fun.