Reached level 37. I was making a quick session when I had this S rank armor dropping in a B mission. Yes I shat bricks - at least it was unexpected. Well I am wearing it. After getting done the B mission I went to do it's A sibling - a A rank arm slot dropped and it was just what I needed.
I have a crap load of A rank weapons of all kind in my storage box. If anyone want some and have ad-hoc party (I hope PSP works with that) gimme a tell and I will give some to you (unless we can trade things too ^^) I am a Protranser.