Very, very carefully.
I'm assuming this is the Halo character and not the naval officer, where they don't have a helmet for the rank of master chief.
Its much safer and easier to buy one somewhere, all considered.
Very extensive work, especially if you're going to make it out of the original material, metal. You'll need hot fire, an anvil, possibly reviting skills (plus the revits), a hammer, a reviting hammer, and a place to do all of the aforementioned work. You might also want to consider wearing ear muffs (ear plugs) as banging (hammering) metal will cause deafness (it's like shooting a pistol inside a building).
Best way to obtain a Spartan helmet is to order one on line. They are available from more than one company...inexpensive to very expensive, some have suspensions inside them for easy wearing, and some probably do not (they might be the inexpensive ones). They are built of metal.
To correct, even if you have all those tools, no one today knows the technique of raising bronze helmet from a single sheet of BRONZE. MEtal is pretty broad explanation.Bronze was probably casted to some extent and than hammered to it's shape.
Best way is not to order cheap modern replica that is 3x the size of the original. But to cast from bronze the shape that would mimic your head.Casting from bronze is the closest you can get.
The Spartan helmet was bronze.
a spartan had a helmet a shield and a spear
he is spartan under his helmet has another helmet
Corinthian helmet?
gold silver bronze
Helmet, cuirass, spear, sword, sandals.
Just keep leveling up your spartan, but to get the mark VI helmet you have to be a colonel. So go try it out.
They are two of Jun's helmet. One is for your avatar and the other is for your Spartan on Halo: Reach. The one for your avatar is simply got for "Killed 100 enemies in a row without dying in either Campaign or Firefight. The one for your spartan I'm not sure about.
Athena's helmet was not specifically Spartan, it was the helmet used by a Greek infantryman, a "hoplite" which was the backbone of all Greek polis (i.e.city states). The Hoplites of Sparta of course were the most famous because of their military superiority in ancient Greece.Mostly in time between 650-470BC. Athena wears a helmet as in addition to being Goddess of Wisdom, she was also Goddess of a Just War.
You have to become a UNSC Spartan Rank online.
You need the Spartan Officer achievement - get 50 xp in any playlist.
You have to get the spartan graduate achievement by playing on Xbox Live