Call of Duty: Modern Warfare 3’sfirst season has released its second set of weekly challenges. Each week throughout a season, a new set of challenges become available for core Multiplayer, Warzone, and Modern Warfare Zombies (MWZ). Completing any five of these challenges will unlock a new weapon or Aftermarket park, some of which overhaul how the weapon performs.
This week’s challenge unlocks a unique optic, giving you additional customization options for nearly every MW3 weapon. This guide will showcase how this optic looks, and we’ll cover how to complete every challenge tied to the second week of MW3’s first season.

Week 2 Challenge Reward
Completing five challenges this week will unlock theJAK Bullseye optic.This installs a new set of iron sights onto your weapon. It’s better than most iron sights present on MW3 weapons, but this takes upthe same attachment slot as your average red dot sightor magnified optic.You can install this attachment on most weapons except sniper rifles.
Kill 30 operators with a recommended weapon.
2,500 XP
Get 30 kills while aiming down sights (ADS) with a recommended LMG.

5,000 XP
Get 30 kills while aiming down sights (ADS) with a recommended pistol.

Get 30 kills while aiming down sights (ADS) with a recommended assault rifle.
Get 30 kills while aiming down sights (ADS) with a recommended marksman rifle.
7,500 XP
Get 30 kills while aiming down sights (ADS) with a recommended battle rifle.
10,000 XP
Challenge
XP Reward
Get 40 operator kills or kill assists with a recommended weapon.
In Urzikstan, open 20 normal or legendary chests in the northwest region (Resort, Power, Seaport, Cargo).
In Urzikstan, open 20 normal or legendary chests in the southern region (City, Suburbs, Manor).
Complete 15 contracts in Warzone.
In Urzikstan, open 20 normal or legendary chests in the eastern region (Military Base or Farms).
In Urzikstan, open 20 normal or legendary chests in the central region (Old Town, Low Town).