I'm the proud skipper of a Type VII/C41 with a type 3 conning tower with 2 light flak and 1 heavy quad flak,just finished a mission and in the upgrades there's a new heavy flak option.whats the ultimate setup in this configuration because I don't want to lose my deck gun and go the flak boat route,by the way it's march'44.opinions and experiences with flak combinations please