Forts

1. 
   World Domination

   Reach the end of the campaign
   6.1%
2. 
   Rigourous

   Complete all campaign missions
   6.6%
3. 
   High Achiever

   Complete all mission objectives
   2.7%
4. 
   Enemy Contact

   Play 10 multiplayer battles
   35%
5. 
   Hardcore

   Complete campaign on hard
   1.1%
6. 
   Rigourous (Hard)

   Complete all campaign missions (Hard)
   1.1%
7. 
   High Achiever (Hard)

   Complete all mission objectives (Hard)
   0.9%
8. 
   Grasshopper

   Tutorials complete
   86%
9. 
   Bird of Prey

   Complete part 1 of the campaign
   33%
10. 
    Bird of Prey (Hard)

    Complete part 1 of the campaign (Hard)
    3.4%
11. 
    Bear in the Woods

    Complete part 2 of the campaign
    19%
12. 
    Bear in the Woods (Hard)

    Complete part 2 of the campaign (Hard)
    2.3%
13. 
    Dragon Fire

    Complete part 3 of the campaign
    8.3%
14. 
    Dragon Fire (Hard)

    Complete part 3 of the campaign (Hard)
    1.2%
15. 
    Bower Bird

    All part 1 theatre medals acquired
    11%
16. 
    Bower Bird (Hard)

    All part 1 theatre medals acquired (Hard)
    2.2%
17. 
    Roaring Success

    All part 2 theatre medals acquired
    6.7%
18. 
    Roaring Success (Hard)

    All part 2 theatre medals acquired (Hard)
    1.7%
19. 
    Firing on all Cylinders

    All part 3 theatre medals acquired
    2.6%
20. 
    Firing on all Cylinders (Hard)

    All part 3 theatre medals acquired (Hard)
    0.9%
21. 
    Future General

    Play 10 ranked multiplayer battles
    2.8%
22. 
    Moonshot: Moonchild

    Win the Moonshot boss battle
    1.0%
23. 
    Moonshot: Moonchild (Hard)

    Win the Moonshot boss battle (Hard)
    0.6%
24. 
    Moonshot: Lord of War

    Unlock all Moonshot weapons
    0.9%
25. 
    Moonshot: Lord of War (Hard)

    Unlock all Moonshot weapons (Hard)
    0.6%
26. 
    Moonshot: Pacific Win

    Complete all campaign objectives
    0.7%
27. 
    Moonshot: Pacific Win (Hard)

    Complete all campaign objectives (Hard)
    0.5%
28. 
    Moonshot: Shogun

    Complete all Japan objectives
    1.0%
29. 
    Moonshot: Shogun (Hard)

    Complete all Japan objectives (Hard)
    0.6%
30. 
    Moonshot: Nirvana

    Complete all Indonesian objectives
    0.9%
31. 
    Moonshot: Nirvana (Hard)

    Complete all Indonesian objectives (Hard)
    0.6%
32. 
    Moonshot: Maori

    Complete all New Zealand objectives
    0.8%
33. 
    Moonshot: Maori (Hard)

    Complete all New Zealand objectives (Hard)
    0.6%
34. 
    Moonshot: Huntsman

    Complete all Australia objectives
    0.8%
35. 
    Moonshot: Hunstman (Hard)

    Complete all Australia objectives (Hard)
    0.6%
36. 
    Moonshot: MOAB

    Play a multiplayer battle using the Buster Commander
    15%
37. 
    Moonshot: Ghost in the Machine

    Play a multiplayer battle using the Phantom Commander
    9.3%
38. 
    Moonshot: Bathtub Gin

    Play a multiplayer battle with Moonshine Commander
    12%
39. 
    Moonshot: Knuckle Sandwich

    Host 5 Moonshot multiplayer battles
    5.8%
40. 
    Moonshot: Pants Down

    Win a capture point map with your blastdoor open
    1.8%
41. 
    High Seas: Ironclad

    Win the High Seas boss battle
    0.8%
42. 
    High Seas: Leviathan (Hard)

    Win the High Seas boss battle (Hard)
    0.4%
43. 
    High Seas: Splash Damage

    Unlock all High Seas weapons
    0.8%
44. 
    High Seas: Hull Holes (Hard)

    Unlock all High Seas weapons (Hard)
    0.4%
45. 
    High Seas: Captain

    Complete all campaign objectives
    0.5%
46. 
    High Seas: Fleet Admiral (Hard)

    Complete all campaign objectives (Hard)
    0.4%
47. 
    High Seas: Lieutenant

    Complete all Part 1 objectives
    0.8%
48. 
    High Seas: Rear Admiral (Hard)

    Complete all Part 1 objectives (Hard)
    0.4%
49. 
    High Seas: Lieutenant Commander

    Complete all Part 2 objectives
    0.6%
50. 
    High Seas: Vice Admiral (Hard)

    Complete all Part 2 objectives (Hard)
    0.4%
51. 
    High Seas: Commander

    Complete all Part 3 objectives
    0.5%
52. 
    High Seas: Admiral (Hard)

    Complete all Part 3 objectives (Hard)
    0.4%
53. 
    High Seas: Battle Group

    Host 5 High Seas multiplayer battles
    3.4%
54. 
    High Seas: Tides of War

    Host 10 High Seas multiplayer battles
    2.6%
55. 
    Firebird: Blowtorch

    Win the Firebird boss battle
    0.1%
56. 
    Firebird: Flame-thrower (Hard)

    Win the Firebird boss battle (Hard)
    0.0%
57. 
    Firebird: Flammable Objects

    Unlock all Firebird weapons
    0.1%
58. 
    Firebird: Fire Resistant

    Unlock all Firebird weapons (Hard)
    0.0%
59. 
    Firebird: Assistant Chief

    Complete all campaign objectives
    0.0%
60. 
    Firebird: Fire Chief (Hard)

    Complete all campaign objectives (Hard)
    0.0%
61. 
    Firebird: Probationary Firefighter

    Complete all Part 1 objectives
    0.0%
62. 
    Firebird: Firefighter (Hard)

    Complete all Part 1 objectives (Hard)
    0.0%
63. 
    Firebird: Driver Engineer

    Complete all Part 2 objectives
    0.1%
64. 
    Firebird: Lieutenant (Hard)

    Complete all Part 2 objectives (Hard)
    0.0%
65. 
    Firebird: Captain

    Complete all Part 3 objectives
    0.0%
66. 
    Firebird: Battalion Chief (Hard)

    Complete all Part 3 objectives (Hard)
    0.0%
67. 
    Firebird: Fighting Falcon

    Host 5 Firebird multiplayer battles
    0.2%
68. 
    Firebird: Bird of Prey

    Host 10 Firebird multiplayer battles
    0.2%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 68 of them.