suicide mission
martyr operation
sacrifice operation

I'm not going to go on a suicide mission to get the lead.

He didn't want this to turn into a suicide mission.

I wouldn't take you in there on a suicide mission.

He still didn't want to think of this as a suicide mission.

There's got to be an end to this suicide mission.

"So the only way this could work is as a suicide mission."

"It would be a suicide mission to try to get close to him."

It was a suicide mission, and he wanted to make that quite clear.

Believe me, these people are capable of anything, including a suicide mission.

"They were waiting for us and it was kind of a suicide mission," he said.