The Boat Warrior is armed with a Labrys, which doubles as an oar, and has a Coracle on his back that he uses to cross water.

The boat warriors are not too fast and not too slow, (movement-speed wise) lack of armor and their weak attack makes them only useful in ambushes from the sea.

As the lines may suggest,the boat warriors aren't too "smart", and rather that they are slow and dumb.