The Expedition Add-on for Titanfall has 12 achievements worth 200 gamerscore.
Win a match on Runoff
Win a match on Swampland
Play every game mode on Swampland
Don't touch the ground for 60 seconds on Swampland
Be airborne for 500 Meters on Swampland
Play every game mode on Runoff
Kill 25 enemies while wall running on Runoff
Kill 200 enemies on Runoff
Win a match on War Games
Play every game mode on War Games
Kill 12 Pilots in a single match on War Games
Kill 100 Pilots on War Games