Win the Warning Signs mission.

Create a posse and get the maximum number of members.

Kill 500 enemies with any rifle, repeater, or shotgun in any game mode.

Complete the campaign on any difficulty.

Use the Grim Reaper to destroy the MG emplacement.

Watch a film or clip with a friend.

Hit 15 Paratrooper targets

Earn a gold medal in a vehicle challenge

Purchase Sid's Haunted House

Finished "Muffin to Fear"

Finished "Hide-N-Sneak"

Finished "Witch Way Out"

Earn a bronze medal in a vehicle challenge