As a new player who's only played through 1861 so far, I was kind of wondering what kind of naval builds you generally employ, especially as the Union, and what the purpose of those builds are. Do you try to enlarge the navy to enhance the blue-water blockade and go after Confederate commerce raiders, focus on close blockades and amphibious assaults against coastal forts, riverine control, some combination, or something else? Do you prefer gunboats, riverine ironclads, monitors, armored frigates, steam frigates, plain frigates, etc.?
Since you can't form corps until March 1862, I was thinking of giving a more naval-oriented strategy a try. Build up enough of an army to defend against the Confederates and take a few important locations, but mostly focus on building up a navy and some expeditionary forces, then go around and take the coastal forts (improving them to depots in some cases maybe), maybe use those as a springboard for other invasions (Mobile, New Orleans, Charleston..), and some of the less important ports (Galveston, Pensacola). That way, I can force the AI to divide some of its forces to defend against my naval attacks, strangle their imports, increase my own trade, and take important locations (giving me VP and NM bonuses). Has anyone tried anything like that, and if so how did it work?