Many people will start fireing at a bunch of villies a soon as they are within range. Well, sometimes, there is a better way to do it. Do not fire at the bunch of villies as soon as you're within range. GET CLOSER! If you are far from the villies, they will start to run and will miss then since you don't have ballistics! Half of your arrows won't find the target. If you are very close to the bunch of villies, no matter in which direction they will run, you will hit the villies (since you're in the center of the dispersion patern). If it's your first attack against a bunch of villies, take that extra 2 seconds to get closer. Chances are you ennemy will not remark you are moving in. If this bunch of villies has already been under attack, then your opponent is aware of this weak spot and it might not work as well.
Creeping closer to the villies before fireing at them will increase greatly the number of casulaties...
Good luck!
Phil