a parrot, which can be used for harassing enemies or as a distraction. Their special ability gives them the capability of firing an explosive cannonball from their blunderbuss. Skirmishers are equipped with a cutlass which they can lunge forward and impale enemies by using their special ability, a flintlock pistol and a gunpowder keg. Skirmishers move faster than most other classes, but have less health. Sharpshooters are the ranged class of the pirates, and are equipped with a long rifle for long distance shooting, a more accurate version of the Skirmisher pistol, and a small dagger for close quarter melee combat. The Vikings can play as a berserker, huscarl or gestir. A berserker possess a two-handed bearded axe as well as a shorter axe and shortsword. Berserkers can use their special ability to drive themselves into a bloodlust, allowing them to move faster and attack more effectively. The huscarl is armed with a shortsword and a shield which can be used to ram enemies with their special ability, four throwing axes and a two-handed axe. The gestir is equipped with a shield and langseax, three javelins which can be thrown at enemies, and a spear which can use their special ability on to charge enemies and knock them away. The knights have access to a heavy knight, an archer and a man at arms. Heavy knights are slow moving but wield a longsword and can use their special ability to do a circular spinning attack. They are also equipped with a shield and a shortsword. By contrast, the archer is a fast moving class armed with both a crossbow and a longbow, and can use their special ability to fire three flaming arrows at once from the longbow. They are also equipped with a shortsword for close combat. The man at arms is equipped with a halberd,a mace with a small shield and a smaller version of the Archer crossbow. His special attack is farting that makes enemies slow and damage them at the same time. The archer and man at arms are both like a skirmisher; they have less health than other classes but run and attack faster in quick blows. Development Soon after the release of Half-Life 2, Valve released a software development kit (SDK) for the game's Source engine. The SDK allows for the game to be modified in various ways, from model and texture changes, the