Well, the A-10 does more than shoot tanks. It’s very good at that but also destroys anything else that get in its way. IIRC I read an article or two on its effectiveness on shipping. Between the gun and couple of Mavericks it would take a thin skinned ship apart. If used as designed it could be based on remote strips all over Australia. Based on the original design and improvements over the years it could have been very useful.