Arrr me mateys!
Pirates, Vikings, and Knights is quite a unique mod for Half-Life! It hasn't grown to be as famous as Counter-Strike or Day of Defeat, but you'll have a blast.
In case you've never heard of it, it involves 3 teams: Pirates, Vikings, and Knights. In each team, there are 3 unique classes.

Pirates:
Skirmish - Equipped with a cutlass, a flintlock pistol, and a very explosive powder keg.
Sniper - Equipped with a dagger, flintlock pistol, and a very nice musket.
Captain - Equipped with a peg leg, cutlass, flintlock pistol, and musketoon for massive destruction on the enemy!
Vikings:
Berzerker - Complete with a big hammer, and double hand axes.
Spear - Complete with a set of throwing spears, a sword, and a jousting spear!
Axe - Complete with throwing axes, a sword, and a humungous axe for chopping your enemies in half!
Knights::
Man At Arms - Equipped with a flail, crossbow, and a sword.
Bowman - Equipped with a crossbow, a regular bow, and a sword for maximum destruction!
Heavy - Equipped with a sword, a mace, and a very large sword for chopping your opponents in two!p

These are the classes and weapons that PVK consists of. We would love to have a lot more people playing the mod.
If you wanna hang out and act goofy with the community and the PVKTEAM, play in the servers, or hang out in the IRC channel.

IRC Information:
Server: irc.gamesnet.net
Channel: #PVK
Like I said, play Pirates, Vikings, and Knights. It has come to be one of my favorite mods, and favorite games!
Yarr! See ye on thee seven seas!