Challenge Tip

To beat the perk called "Domino" you must set off a chain reaction that kills an enemy player. Cletus discovered the best way to accomplish this is to set up a class with C4 and Martydom. Throw C4 near yourself, get killed and hope that the martydom nade will blow up the C4 which then kills an enemy player.

It worked for both of us.

I was wondering what the hell were those explosions.