Can you reproduce it 100%? Not that I want to, and certainly think the method if known shouldn't be made public. But DICE will want/need to know... Bugs are only fixable if you can reproduce them in a development environment, and the more reliable they are to reproduce, the easier they are to fix (and verify fixed).
bloody hope people dont learn how to do this, it was a lot of fun at the time i can admit. but if it's going to be a constant feature this could potentially ruin it
revisited:
I'm liking Vietnam more than vanilla Bad Company 2, though squad rush is hard to beat in BFBC2, it's meh! in Vietnam.
But there's only one map with choke points, and it's a brillliant map to attack and defend, especially once you get past the fist two crates.
I still like Bad Company 2 though, it makes a great change now and again.
Huey can be repaired in the air, but the pilot needs to fly slowly, and chopper kills are piss easy to get. With one person rapairing and a decent pilot, you can fly one chopper for the whole round.