good job, but all of you guys need to calm down.
First of all, all of that crap about ninjas moving at the speed of darkness and having massive arsenals of deadly weapons is entirely inaccurate. Historically speaking, ninjas were strung out teenaged opium junkies who would be paid for each job they preformed in a miniscule hit of opium, and if they were lucky, a small meal and a place to sleep for the night. Not that pirates were any better. There have been very few pirates who spent any amount of their time sober enough to walk, much less fight assassins. Albeit the ninjas had more advanced swords, whereas the pirates had the kind of accurate and deadly firearms and grenades that most military forces in asia could only dream of at the time. In truth, there is no accurate way to predict who would win, in the end it would boil down to environment and experience.