Best Rezi 12 Loadout in Modern Warfare 4 for One-Shot Kills

The Rezi 12 can delete enemies in one shot. You just need the right build.
This shotgun hits hard up close. Build it wrong and you'll lose gunfights. Build it right and nobody survives.
Why the Rezi 12?
Shotguns in Modern Warfare 4 reward aggressive play. The Rezi 12 is one of the best options. It's fast. It's deadly. It punishes anyone who gets too close.
But stock attachments won't cut it. You need to boost damage and tighten the spread.
The One-Shot Build
Focus on these stats:
Damage range: You want kills from further out
Pellet spread: Tighter is better
ADS speed: Snap onto targets fast
Pick attachments that max out damage. A barrel that extends range helps a lot. Laser attachments speed up your aim. Stock choices depend on your playstyle.
How to Play It
Don't sit back. This gun is for rushing. Push corners hard. Pre-aim doorways. Listen for footsteps.
One shot. One kill. That's the goal.
If you miss, swap to your secondary or get out fast. The Rezi 12 punishes bad aim just like it punishes enemies.
Final Thoughts
The Rezi 12 is simple. Get close. Pull the trigger. Win.
Dial in your attachments and this shotgun will carry you through multiplayer. It's not fancy. It just works.