Effectivity of AA light battleships

[Galacius]

Hello again, I come to you with a question that stems from a fleet battle earlier today.

The corsairs invaded alpha and it was grand. This single event was the most fun I have had in all of discovery, but halfway through I got a bit bored. The maltese capital ships where destroyed fairly early on leaving me and a dreadnought to sit there and get pounded on. I of course took a few pot shots with my razor but other then that I sat there and was a target.

This makes me wonder about AA battleships. I have seen it done several times yet I have never seen it in action, im wanting your personal oppinion on the matter and any suggestions towards doing it.

Im thinking for my osiris

1x mortar
2x pulse
2x razor
7x solaris


Any ideas? It might be horrible where I should stick to my 1x mortar, 2x pulse 1x razor and the rest primaries loadout but it leaves me wondering if it might be the way to go. Where the osiris takes out less then caps while the dreadnoughts pound on each other then I would move on to mortaring/pulsing said enemy dreadnought.