Even the global and industrial level troops cards from the dock/shipyard aren't really worth their time spent over the daily bonus cards that are also industrial/global around the gold and kingdom medal range. I feel like the dock/shipyard's troop cards could use a buff and their exped time reduced down to something like 16 hours. Like, I could have 2 french tanks or an exped force (6 brit ranged infantry, 1 machine gunner, and one heal truck -- industrial level) or the demo team (which is honestly terrible compared to a card like fire throwers) but I could just be using a better troop card that brings, like, double the amount of units than any of those. The Zero has merit as a throw away, suicide (kamikaze) plane for that emergency "distract this/kill those defenders" play but the exped takes something around 2 days... In the end not a single one of the cards from expeds them are worth their time. Even worse -- they're not even worth using the workers for. So I feel like if they are going to add that atomic dock/shipyard then they need to look back at the troop card expeds and buff them up to around the usefulness of other similar lvl troop cards.
Oh, also making sure to add an exped that will be better than Rangoon (since that's an industrial exped that will be lost with the AA upgrade). "Why?" you ask? Because Rangoon is literally the most useful exped in the entire list of expeds at Global lvl other than Kiel (nets 3 salts + tactics blessing), Le Havre (Cheese + Oil Blessing is half decent, though the exped time could be shortened) and Buenos Aires (3 scrolls + commerce blessing, honestly the weakest of the 4 economic expeds because of that awful 16 hour exped time. Would be better if it was reduced to Kiel/Rangoon time while keeping the 2/3 worker requirement). For the low low price of 2 workers (1 with research) you get 3 diamonds for a 6 to around 4 hours (with the right wonders + research) exped a pop. That's crazy useful for the higher medal ranges since 5 star diamonds are pretty much impossible up there. It makes you able to not have worry about rebuilding that tank destroyer army at all. If BHG replaced Rangoon with something legitimately worse then players would have literally no reason to upgrade the dock/shipyard to atomic -- which I know I very well would do myself. Although if you guys at BHG made the rest of the expeds (and future ones) as awesome as Rangoon then I can say I would constantly be sending out workers on those expeds.