“....nor their S&R unarmed $10M helicopter...”
You got some indication that bird is bulletproof? No way that thing gets in position without taking enough damage to knock it out of the sky and landing on who knows who or what.
They at least could have tried but they did nothing with what they had, if they had a small octocopter drone, a difficult target to see a night and almost impossible to hit. They did nothing hi-tech- it was all 19th century tactics.