Link here:
http://www.l4dmaps.com/details.php?file=33
Description of campaign: In Death Aboard you start out in a prison and work your way out to the nearest docks area. From here, you board a stranded ship and finally to a peninsula or island where there will be a lighthouse as a finale.
Length of first map: Longer than average L4D map.
The first map is available for beta.
Images:
Download link: Its below the screenshots, very small link location under the Google Ads.
Hopefully we can get this on the custom server to take a look at shortly.