About the TOW in the video (which awesome) most US guided missiles use Bang-Bang steering, which is it can only steer hard-left, hard-right, hard-up and hard-down.  Because it works and is very simple.

As for helos, I don't fly much but people can testify when I do.  It doesn't matter much which helo I use, I'm crazy with them.  I always have fun flying and scaring the **** out of people.  Although I usually gun or taxi people around in the BH (word of advice on wake... fly low and through the trees), I ain't something laugh at when I use the attack choppers.