For this, you’ll want to equip the best loadout.
Why use the Tyr in MW3?
The Tyr semi-automatic handgun is a new and unique choice of sidearm in Modern Warfare 3.

Unfortunately, with such high damage potential, the recoil control and fire rate suffer as a consequence.
Ali’s Regret is also a solid alternative offering up reduced firing delay as a similar attachment swap.
Best Tyr class setup: Secondary weapon
MCW or SVA 545.

TheMCWhas impressive stats across the board that make it a great weapon across multiple game modes and maps.
The damage potential on the SVA 545 pairs nicely with the Tyr laying in wait in the secondary slot.
Taking you out of your opponent’s headphones and putting them very much in yours.
For the Field Upgrade slot, this really comes down to personal choice and how you like to play.
Unsurprisingly then, we’d recommend it as an alternative to the Tyr.
TheWSP Stingeris another solid pistol choice for its damage-dealing potential despite its compact size.