Watch “Carriers Expansion for Spruance Leader (DVG) - Unbagging,” a board game unboxing for Spruance Leader: Carrier Expansion on BoardGameVideo.
Description provided by KilroyWasHere on YouTube:
Join me for more DVGoodness as I unbag the Carriers Expansion for Spruance Leader. This expansion adds, well, wait for it . . . more involved carrier rules and a separate air attack board, more missions/campaigns utilizing carriers, more carriers and the commanders who command them. Thanks DVG!
Spruance Leader - https://youtu.be/8hBtUmr-LF8
Submarines Expansion - https://youtu.be/8naoHpMy3AI
Allies Expansion - https://youtu.be/zNJIs0LMWcs
P.S. Once I unboxed/unbagged everything, a quick glance shows that there were no subs/carriers in the base game (mostly frigates, cruisers, destroyers, etc.), so it appears if you want to play sub or carrier specific missions/campaigns, then you will need those expansions and the special rules, cards, displays, etc. that come with them.