how can i unluck halo 3 mythic armor?

[sakukazea reed]

im trying unlock almost all the elite armor and i heard you can do that by getting the skulls and acheivements and stuff, i know that you probably cant unluck all by that but i want to unlock all of the armor even though it is some!

 

[P T]

Ascetic (Body) - Get the Up Close and Personal Achievement

Ascetic (Head) - Get the Steppin’ Razor Achievement

Ascetic (Shoulders) - Get the Overkill Achievement

Commando (Body) - Get the Triple Kill Achievement

Commando (Head) - Get the Overkill Achievement

Commando (Shoulders) - Get the Killing Frenzy Achivement

Flight (Body) - Complete Tsavo Highway (on Heroic or Legendary)

Flight (Head) - Complete the campaign mode (on Legendary or Heroic)

Flight (Shoulders) - Complete The Ark (on Heroic or Legendary)

 

[P T]

Ascetic (Body) - Get the Up Close and Personal Achievement

Ascetic (Head) - Get the Steppin’ Razor Achievement

Ascetic (Shoulders) - Get the Overkill Achievement

Commando (Body) - Get the Triple Kill Achievement

Commando (Head) - Get the Overkill Achievement

Commando (Shoulders) - Get the Killing Frenzy Achivement

Flight (Body) - Complete Tsavo Highway (on Heroic or Legendary)

Flight (Head) - Complete the campaign mode (on Legendary or Heroic)

Flight (Shoulders) - Complete The Ark (on Heroic or Legendary)