Talk:Equipment/@comment-24262985-20131214032618/@comment-24161900-20131223090934

If you want ooi/ktkm to shoot planes with a double attack setup, run a 15.5 secondary + 12.7 dual use + midget sub.

As for why it's listed as dual use, it's technically a secondary cannon but could function as a main cannon...or something. The 'how to play' page correctly says that yellow guns don't shoot planes on their own.