Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Aaaarrrrgggghhhh!	Kill another player while their on a killing spree.
Ahoy, Matey	Kill 10 players without dying.
Ahoy, me Hearties!	Kill 15 players without dying.
Ahoy!	Kill 5 players without dying.
Blow the man down	Kill another player.
Congratulations!	Win a match.
Feed the fish	Kill 10 players in a match.
Feed the sharks	Kill 1000 players across all matches.
Flawless Victory	Win a round without dying.
Heave Ho!	Kill 3 players within 15 seconds of eachother.
Keelhaul	Kill 2 players with the same cannon volley (Secret)
Live to fight another day	Finish a round without dying.
Old Salt	Win 1000 matches.
Scurvy dog	Win 10 matches.
Seadog	Win 100 matches.
Shark bait	Kill 100 players across all matches.
Shiver me timbers!	Kill 5 players within 15 seconds of eachother.
Yo Ho Ho!	Kill 2 players within 15 seconds of eachother.
You call it luck, I call it skill	Kill another player without ever seeing them (Secret)