The Red Baron
From: Adirondack Mtns, NY
In one game I executed an amphibious assault against Vicksburg. I landed, rested my troops for one turn, then ordered an all-out assault against the city. I captured both coastal artillery units during the assault. In the same game I captured Island 10 in Lake, TN; I captured the coastal guns at Island 10 as well, although it took me several turns to take the place. The turn following my capture of Island 10, I loaded the coastal guns onto transports and sent them to Cairo, IL to receive replacements. They moved but very slowly. Transit time was almost 30 days. It took something like 23 days to load the guns, which makes perfect sense considering their size & the time period, and only 4 days for movement to Cairo.
Coastal artillery has a 50% capture percentage; so, if most of the time you fail to capture coastal guns, I would just chock it up to bad rolls; likewise, my "luck" in that game was probably just that - luck. I captured some nice war booty because I had good rolls.
Edit: Loading coastal guns onto riverine transports using assets from your riverine transport pool works; however, you cannot use discrete transports, i.e. those on which you spend $$ and WS to build, to transport captured guns.
< Message edited by The Red Baron -- 11/24/2013 6:33:13 PM >