Meet Revolver

Cleared Chapter 4: The Illusion of Peace.

Attacked enemy soldiers by blowing up an oil drum or truck (single player only).

Shot enemy right in the middle of the rear end.

Cleared Chapter 2: The Phantom Hero.

Reached at least 100 stun attacks or sleep-inducing attacks.

Captured a mech.

Cleared Prologue: An Army Without Borders.

Defeat The Boss

Defeat Shagohod

Defeat The Sorrow

Defeat The End