Name: Unknown

Known Name: X-lord, The revolutionist, Rust lord 

Looks 

Chapter 1 season 3

Season X

Chapter 2 season 2

Weapons

(A mythic heavy AR called the Revolution with the skin on it below)

Leader of:

Chapter 2 season 2: Hero

(the flag of Hero)

Chapter 2 season 5: The Island Defensive Point (Or IDP)

(flag of the IDP)

pickaxe