It's an Excelsior-class Heavy Cruiser that I bought with C points once I hit Commander. And thanks for the help. I currently have two tactical/security officers, an engineering, and a science officer. I honestly haven't paid too much attention to them other than upgrading their equipment and using their skill points on their abilities.
Just a few suggestions: (Assuming that you are using a Tac officer)
Put single cannons on the front, turrets on the rear.
Run the Defari FEs that will give you the frosty set.
LCDR Engr - Engr Team I / Rvrs Shd Pol I / Aux to Batt II
ENS Engr - Emer Pwr to Wpns
Hope this helps.