Review - MechWarrior 4: Vengeance and Black Knight. In the United States, the original MechWarrior 4 sold 320,000 copies and earned $11.5 million by August 2006, after its release in November 2000. MechWarrior 4: Vengeance is a computer game developed by FASA Interactive and published by Microsoft. The FAQ for MechWarrior 4: Black Knight Expansion plus great forums and game help. MechWarrior 4: Black Knight Expansion Cheats and Cheat Codes, PC.
