You have to look at what the purpose of this vehicle is. It is not designed to be an Infantry Fighting Vehicle (IFV) like the M-2 Bradley. It's primary mission is to get Marines from the ship to the shore, then return to the ship to get more Marines. Yes, many times it is employed as an IFV, but that is not it's main purpose. And as such, the Infantry inside do not fire from it. They are either buttoned up inside because it is in the water, or in cases where it is used as an IFV they are actually riding on top of it, like they did in Vietnam. This is the type of thing that all Marines are aware of. Other than direct amphibious operations, we rarely actually worked with LVTs or AAVs. We got on, went from ship to shore or across a river, then got off. In the rare event we did work with them for prolonged operations, we generally stayed on the roof, knowing that being inside of them on land where the chances of being taken under fire by anti-tank missiles was high was a death sentence. And yes, these boxes are well past time for retirement. The current LAV-7 is actually a Nixon era machine, designed during the Vietnam War. They should have been retired decades ago.