Dr Livingston, I presume
Enter every 1 square kilometer map region of the world
Missing Timestamp
Rare 14.4%
The third faction
Rescue all the Buddies from their respective predicaments
Missing Timestamp
Ultra Rare 3.8%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
Missing Timestamp
Rare 39.8%
Homecoming
Complete 'Of Their Own Accord', 'Second Sun', and 'Whiskey Hotel' on Veteran Difficulty.
Missing Timestamp
Ultra Rare 3.9%
Completed Chapter 2 - 1
Complete Chapter 2 - 1 on any difficulty setting.
Missing Timestamp
Common 63.4%
Completed Chapter 4 - 1
Complete Chapter 4 - 1 on any difficulty setting.
Missing Timestamp
Common 50.8%
Fireworks
Shoot an enemy Molotov cocktail, dynamite stick, or hand grenade.
Missing Timestamp
Common 61.8%