If guns are banned people will use knives and other weapons to kill people. Have you ever heard of illegal arms dealers who sells weapons and going against the government.

Guns don't kill people just lying around collecting dust and rust it depends if they are being used or not.

1. Spartans don't have nets they have over sized shields that can cover their body and it can stop a puny shuriken because its made from hardwood covered in ox hid and coated in 1 or 2 inches of bronze.

2. GET REAL ninjas cant use rasengan,chidori or any of that shit from tv and anime, although it would be amazing to send someone fliying from an energy ball just like in NARUTO it would be impossible to do so.

HALO(In my opinion) is one of the best videogame ever made in the entire history of the world up until now.

Pirates are the scourge of the seas almost everyone fear them and they make you piss and crap your pants out while screaming "Mommy the PIRATES ARE COMING SAVE ME ! While ninjas are unknown to most people and only high ranking officials fear them.

Yes but Spartans also have a martial art called pankration which can also break shields using punches and kicks. Its mainly based on grappling, boxing, wrestling and powerful kicks and Spartans use it to kill people. In Greece its also a sport which Spartans are not allowed to join because their brains are hardwired to gouge the eyes, break jaws, necks and limbs. They are also capable of breaking/denting armor and bones.

Spartans are trained for battle since they were young. They would go to one of the most extensive and brutal training known to man. Their mind was hardwired for battle and killing. The ninjas on the other hand are assassins and are trained in covert arts which is completely different from Spartan training who are trained for direct combat. In reality ninjas are just peasants who developed their own unique and different fighting style. Spartans would win because the weapons and tactics of a ninja is to hinder while Spartans are trained to kill using almost anything in the surrounding, like in one battle when a spartan killed the enemy general using a rock.