"Guns" have to be above the waterline, "Torpedoes" have to be below, so therefore, you cannot (in theory) do a vertical launch... However, if you have a "missile gun", such as what a "torpedo gun" is, and attach it to your sub at "launch depth", with the hidden "missile gun" sticking out of the water enough, in place of the "smoke / flare", you could do a "missile launch" animation... maybe... ?? What to do after that though? A consultation with Jeff-Groves might be in order... 'course, that "gun" might interfere with your ice cap sail-under... lol