just turned on tac mask and got pro yesterday and im mad at myself for not using it before. not only doe it protect you from getting flashed and stinky gassed, it shows the posotion of everyone you hit with a flash or stun. AND THEN you add scavenger pro to the mix. you resupply you tact. grenades! its to good you can throw flashbangs and stinky gas for days. just blinding people and gettin spas busy .