I take issue with the word suicide. Suicide actually takes a plan, so I don't really think the word "suicide" fits for what the FO did to the O-line.
Here are some options:
1. smash, level, waste, ravage, devastate. Destroy, demolish, raze imply reducing a thing to uselessness. To destroy is to reduce something to nothingness or to take away its powers and functions so that restoration is impossible: Fire destroys a building. Disease destroys tissues. To demolish is to destroy something organized or structured: to demolish a machine. To raze is to level down to the ground: to raze a fortress. 2. extirpate, annihilate, uproot.