Call of Duty: Modern Warfare 3has released its final set of weekly challenges, bringing with it the final new Aftermarket Part. Completing any five challenges this week will unlock the JAK Voltstorm Kit, a modification for the Stormender launcher that turns it into a powerful taser.

While it might not be the strongest attachment, this is also the last time you’ll be able to unlock an exclusive seasonal camo by acquiring every Season 6 AMP. This guide will briefly explain how the Stormender’s new Aftermarket Part works, then cover how to complete the last 21 challenges in Modern Warfare 3.

Modern Warfare 3 Stormender Launcher

Week 4 Challenge Reward

The final weekly challenge reward in Modern Warfare 3 is theJAK Voltstorm Kit for the Stormender launcher.This transforms the weapon into a lethal taser that can chain between targets, although using this weapon is fairly clunky.Your effectiveness against killstreaks is significantly reduced with this AMP, so keep that in mind.

When equipped, you’ll need tocharge the weapon for a secondbefore it can fire. This will unleash a lightning projectile that suffers from extreme damage falloff. You need to be practically in melee range to use much use. It is a one-hit kill if you land a direct torso shot up close, and the taser can chain between targets if they’re close. It’s impractical for Multiplayer (excluding Hardcore modes), but itcould see play in MWZwhen Pack-A-Punched.

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