Halo 3 Question?

[?????]

The first two players are the Master Chief and the Arbiter, but who are the third and fourth players?

 

[Lasagna delivery guy]

the third is a blue combat elite,the default elite armor in the multiplayer games

and the 4th is a red assault elite,an elite with red assault armor

 

[Lally]

They are two new Elite characters: N’tho ‘Sraom and Usze ‘Taham.