firepower kill

Wiktionary

1. n. military, slang The damage inflicted by a weapon on a vehicle that destroys its weapon systems, or substantially reduces its ability to deliver weapons accurately.
2. n. military, slang Tanks and other armoured vehicles that have their guns or missile system damaged under fire; when damaged, vents open to channel ignited propellants and explosives away from the crew cabin. The firepower-killed tank can then return to a maintenance center with its crew intact.