Wanted: Fresh Fish
This mission is quite easy if you know how to do it. And is given to you by the New Haven Bounty Board.
Fresh Fish 0/20
Go around find round things floating on the water and throw a grenade at it them collect the fish.
Tip: You do not need to get all the fish in the one trip. If you leave the area and return the fish areas where you have already blown up will be there again for you ro grenade.