Here is the full list of all 13 Mutant Ops achievements.
Complete wave 20 in a solo or co-op game.
Complete wave 40 in a solo or co-op game.
Complete wave 75 in a solo or co-op game.
Complete wave 100 in a solo or co-op game.
Kill 100 enemies in a solo or co-op game.
Kill 1000 enemies in a solo or co-op game.
Make it to wave 10 with 100% weapon accuracy.
Make it to wave 20 with 100% weapon accuracy.
Make it to wave 30 with 100% weapon accuracy.
Kill 10 enemies with one shot in a solo or co-op game.
Kill 5 dragons in a solo or co-op game.
Take 1000 damage in a solo or co-op game.
Make it to wave 30 without taking damage in a solo or co-op game.