The Battle for Middle-earth II: Passion is a modification of The Battle for Middle-earth II: Passion for PC.
Here's a fish boat for the good factions, it collects resources (around 25 seconds).... in the video it's every 5 seconds just to show you.
It can't shoot at the enemy and it's not transportable, so it's quite vulnerable on it's own.
you will need to view in HD to see it better :S