No missable achievements (plus 12 unknown)
Sign in with Steam or Xbox to track your progress, and:
Take out 20 enemies
Defeat El Raton
Take out 100 enemies
Defeat The Butcher
Defeat Cassandra
Defeat The Priest
Defeat Cesar
Complete Single Player Campaign on Normal Mode
100 Chainsaw kills
Take out 1000 enemies
Complete Co-op Campaign Mode
Complete Single Player Campaign on Hard Mode