Here is the full list of all 40 Combat Raccoon achievements.
Complete level 19 with three stars
Complete level 18 with three stars
Complete level 17 with three stars
Complete level 16 with three stars
Complete level 15 with three stars
Complete level 14 with three stars
Complete level 13 with three stars
Complete level 12 with three stars
Complete level 11 with three stars
Complete level 10 with three stars
Complete level 9 with three stars
Complete level 8 with three stars
Complete level 7 with three stars
Complete level 6 with three stars
Complete level 5 with three stars
Complete level 4 with three stars
Complete level 3 with three stars
Complete level 2 with three stars
Complete level 1 with three stars
Complete Level 20
Complete level 20 with three stars
Complete Level 19
Complete Level 18
Complete Level 17
Complete Level 16
Complete Level 15
Complete Level 14
Complete Level 13
Complete Level 12
Complete Level 11
Complete Level 10
Complete level 9
Complete Level 8
Complete Level 7
Complete Level 6
Complete Level 5
Complete Level 4
Complete Level 3
Complete Level 2
Complete Level 1