Advanced Heavy Grenade Calibration
In a single life, calibrate Grenade Launchers that use Heavy ammo against any target.
"Ah. Yeah. Grenade Launchers don't get enough credit. Good way to bust up a crowd." —Banshee-44
"Ah. Yeah. Grenade Launchers don't get enough credit. Good way to bust up a crowd." —Banshee-44