Researching the E50M

churchill50: You don't need to research the 10.5cm gun. You can just research the E50M, and then I believe you get the 10.5cm gun on the E50 researched for free since it's the same gun as the E50M. EDIT: Nevermind, the 10.5cm gun is on the research path to the E50M, so you do need to research it to research the E50M.