The Tac Mask protects from many popular throwables and can allow you to turn fights around when your opponent is sure they have the advantage.
The part that brings Tac Mask to the next level is full immunity to Shock and Snapshot Grenades. Snapshot Grenades, in particular, are a death sentence in most situations. The ability to nullify them entirely elevates Tac Mask over most other choices and is only outclassed by the top two.
Unlocks for Level 10: New Perks
Vests are new to all players of the Call of Duty franchise, changing your Loadout in meaningful ways, including changing the type and number of gear slots available to you.
Engineer Vest (Perk): Spot enemy Equipment, Field Upgrades, and Killstreaks through walls. Aiming down sights highlights them for your team. Faster Field Upgrade recharge.
Tac Mask (Perk): Reduces strength of enemy flash, stun, and gas grenades. Immunity to shock, EMP, and Snapshot Grenades.
Added immunity to Flash Grandes (Tactical) thrown by the player’s self.
Gear has Perks that have a wide-ranging selection of improvements to a variety of skill sets, related to weapon handling, immunities, early warning systems, and damage reduction. Every Vest allows you to run one of the following pieces of Gear, and the Engineer and CCT Comms Vests allow two:
Tac Mask
Reduces strength of enemy flash, stun, and gas grenades.
Mission Control Commlink
Reduce Killstreak cost by one (1) kill. Reduce Scorestreak cost by 125.
Bone Conduction Headset
Reduces combat noise, allowing improved identification of enemy footsteps and gunshots.
Mag Holster
Improved reload speed.
Blacklight Flashlight
Shows recent enemy footsteps.
L/R Detector
Warns of hostile laser and radiation sources.
Threat Identification System
While ADS, automatically pings enemy locations in crosshairs.
Data Jacker
Enemies you kill drop a smartphone. Collecting the smartphone generates a radar ping from that location.
Signal Jammer
Emits a signal disrupting placed enemy claymores and mines. Warns of nearby enemy equipment.
Hijacked IFF Strobe
Undetectable by AI targeting systems and thermal optics. Does not highlight in enemy Tactical Cameras or Recon Drones.
Ghost T/V Camo
While moving, blocks detection by UAVs, enemy radar sources, and Heartbeat Sensors.
EOD Padding
Reduces damage from non-killstreak explosives and fire.