Destroyers are a bit underpowered now, and those Inferno's are only going to be of use against other cruiser pilots. Gunboats are small enough to dodge them, and a single gunboat can take out a destroyer without much of a problem.
you have 9 turrets, 6 at the front, two in the middle, and one at the back.
The six at the front should be your most powerful guns, (one of each on each side of the axe head).
Probably the two Inferno's, two missiles, and two cerberus'. The two in the middle of the destroyer could be Order turrets, as well as the one at the back. I say this because, even though all guns would drain a lot of power, most opponents would not stay in front of you.
Also, the destroyer/cruiser class is useless against fighters (I fly a bounty hunter one and it took me ages and a lot of my hull to scare away two fighters) even with Corsair turrets. If you get a few solid hits in, the fighter hull goes down pretty quick, but the likely hood of you getting those solid shots in is pretty small.
Admittedly, i am not an avid destroyer pilot, and there is better advice around. At the end of the day, its up to you to find your perfect loadout. I found one for my Corsair gunboat(s) and I am sure there is one for the Kusari destroyer.
