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I had a downed American 'chopper crew stop a Somali half-squad on the final turn of a scenario for Day of Heroes to hold the objective and win the game.
Since then, I don't underestimate their usefulness.
And that my friend is why I asked.
I was looking at the level of details on rules here, AND looking at DoH. The pics showed lots of hapless crews trying to hold on. Interesting.