To anyone interested. I’ve made Excel files to compare turrets for gunboats, cruisers and battleships. The main characteristic is the weapon’s efficiency (hull damage made by one energy point). You can get the same list of turrets ordered according to efficiency on “discovery wiki” if you sort them by energy/s. In these excel files only primary turrets (lvl 8, 9, 10) are included. Last calculation sheet shows hull damage and ship’s output power drain when different types of turrets are mounted. Key parameters to change are: output power, power recharge, number of turrets mounted.