What types of weapons were found on the boat?
All that I have read, so far, says that only personnel weapons were found. It seems that they used young recruits from AQ, who were told to bring along whatever weapons they had at home. They were going to be martyrs for the cause, and only needed enough firepower to injure a few soldiers, who only had paintball guns.
Using the flagship as bait, one could safely assume the terrorists hid the military ordinance on the other ships.