Do you have to arm the boat before leaving on new mission? I just left Wilhelmshaven a couple days ago to patrol grid AN13 and came across a lone British merchant. My single torpedo badly damaged but did not sink it. I surfaced intending to finish him with my deck gun, but find out I have no ammo for it.

Do you have to specify what you want loaded on your boat or did the shore crew forget?
Thanks,
MJ