When firing (limited).
"My heart goes boom!"
Explosive Shells are an unlockable Equipment, which can be used in one of the three equipment slots available for each trooper. Once equipped, it allows a Trooper to fire up to 6 explosive shells, doubling or quadrupling their Damage (depending on what weapon is used).
Note: Burst weapons will do double damage with explosive shells while one shot weapons will quadruple the damage.
Burst weapons: Machine guns, assault rifles.
One shot weapons: Snipers, pistols, shotguns.
No shells operate with Launcher class weapons.