what are the different episodes of this franchise?
"Halo 2", "Halo 3", "Halo 4", " and Halo Infinite".
Master Chief (Halo)
series of science fiction first-person shooter video games "", "Halo 2", "Halo 3", "Halo 4", " and Halo Infinite". 
what is master chief (halo)? He  is a fictional character and the protagonist in the "Halo" multimedia franchise. which literary genre did it belong to? Science fiction.
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Master Chief (Halo) [SEP] Introduction
Criticism of the Master Chief's lessened role in "Halo5" led to the developers refocusing on him for the upcoming video game "Halo Infinite".