Don't know mate it's you're choice. I'm in 42 now and I still used my gun a few times. (like parking behind a stopped freighter when he only has a gun on his front and finishing him off, or what I did in my last patrol - hitting the damn Liberty freighter with my cannon, although liberty was fully armed, because I lacked the fuel to make another pass and sink it properly with torpedoes)
If I see it myself that I don't really need it I will remove it but for now I take all I can bring with me to patrols. Who knows maybe I'll find a sailing boat I hate
