ALICE PACKS are just too damn big and bulky. If ya plannin to hump 40 miles in a OP, go ahead and use it. But you can't move in vegitation very well in them, you can't fire from the prone position while wearing it, and sure as heck can't be silent while on the prowl. The "mini-alice" is a better way to go, and the VN era Rucks are much smaller and user-frendly.