creating Sub School missions but need help

[lexloma]

Searched the forum(s) but came up blank...
1) Trying to create missions for each class of boat but Sargo, Tambor, and Tench (when checked as "human player") result in the boat pull-down menu in Sub School with only "Unknown" as a selection and you cannot execute the game.
2) How do some missions have multiple class options on the boat pull-down menu (e.g. S18, S42, Salmon, etc.)? Whenever I create a mission it's only the boat I've checked as "human player" that shows in the boat pull-down (except as noted in #1, above.

Thanks for any guidance...