Rules

Thrown grenades have a distance of 0-5.  They may be lobbed over other units friendly or enemy but not over walls.  They use the Grenade Special Attack template as found on the Siege of the Citadel Weapons Chart unless otherwise specified.

Upon two hits on three red dice, the Concussion Grenade automatically shocks the targeted unit but not the units under the outer ring of the explosion.  Should three hits appear on the three red dice, the Concussion Grenade shocks all targets under the explosion.