Kane & Lynch-Havana

I'm stuck on the Havana mission in Kane and Lynch. I'm pinned down by the heli and can't seem to shoot it down. Any advice on the best way to make it through the mission?

yeah listen to the GTA fan.

no just hide behind stuff until it come to a stop in the middle.

i assume your on the roof part?

when it stops fire a rocket and run like hell. repeat until it's down

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