Use the Monkey Bomb. (Map Pack 3 only)

Disable the SAM sites

Kill or incapacitate 25 enemies

Destroy Radar emplacement

Collect 5 pieces of intel in the single player Campaign.

Got the Pip-Boy 3000

Kill 25 enemies

Collect 50% of the prize bubbles on the story levels

Get rescued by a Buddy

Shoot an enemy Molotov cocktail, dynamite stick, or hand grenade.

Complete Chapter 2 - 1 on any difficulty setting.

Make sure to put out your campfire.

Tie off the house so it doesn't float away.