If your only going to use it for airsoft, go molle. It doesn't shake around as much that way. The only problem with this is that if you don't have a counter weight on the front of your vest (a plate, lots of mags and other pieces of kit, ect) the front of your vest will tend to rise up to your lower neck and become annoying and the only way to get it down is to drink the water to equalize the weight, or make the front of your vest heavier.