Maybe you could pick up the Iphone Heli thing. I am not going to look right now but I seem to remember it having guarded rotors. Not sure how safe it is even then though.
What about making the heli so it only does straight down like a bomb drop? Maybe something where once you earn a heli strike, there is a "time of attack"for the heli to get as many kills as possible and then it returns to base. Maybe it could keep the heliabove harms way. Again though, if the heli gets out of control, someone could seriously get hurt.
Have you been playing Modern Warfare?

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