Ninja Blade mod for Half-Life 2

Ninja Blade is based in the time period of feudal Japan with conflicts between ninja's and samurais. Players can choose to be a ninja or samurai. At present, we've decided to work on three gameplay variants to begin with. The Ninjas will be required to steal an object, assassinate a particular playe ron the Samurai team (randomly selected, and gets to play as a diplomat for the round, so the samurai really need to work together to defend him!) or to escape from the samurai fortress or whatever, sort of after a failure kinda thing. Character will gain points from completing objectives, scoring kills etc and these can be used for Ninja tools or buying Samurai new weapons, armour, weapon proficiencies etc.