I'll try to reply to several posts at once.
1) We don't carry HARMS but do have ARM - Sidearms. They weren't carried much tactically - I did one misison with it in GW I. Just another system to study. Fun to fire though.
2) It was only a few years ago that we decided two pull the 20mm gun pods out of the system. I've only used them once on a W and they were fun. Weight or black boxes not an issue for it but it stub wing loading could be an issue for heavier stuff. You seen the pictures of the Maverick trials on a W?"
3) We've practiced for and stood anti-ship missions. Especially when transiting through some of the pirate zones in the Pacific. The newer frag and blast Hellifres would work well.
3) The Marine UH-1E had the TAT-101? twin 60 turret on the nose. Never seen a later Huey with a turret.