Combined Arms Operations Series

Combined Arms Operations Series

27 achievements

Ultra Rare×21

Very Rare×4

Common×2

About Combined Arms Operations Series's achievements

Combined Arms Operations Series has 27 Steam achievements, 21 of them ultra-rare — unlocked by under 5% of players. The rarest is "100X Red", earned by just 0.2% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

0.2%

of players earned "100X Red"

🗺️ Community guides & walkthroughs

Community Ratings

No ratings yet

Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All Combined Arms Operations Series achievements

27 achievements

100X Red

Win 100 times while playing Redfor in any game mode.

Ultra Rare0.2%

Freedom Rings

As the US, barrage a hex with over 400 barrage points in a single turn.

Ultra Rare0.2%

Endangered Species

Destroy 200 Tiger I or IIs in a single scenario.

Ultra Rare0.2%

Developer

NS 2 Games Developer

Ultra Rare0.3%

100X Blue

Win 100 times while playing Blufor in any game mode.

Ultra Rare0.3%

No man, no problem

As Russia, win a game while losing 80% of your force.

Ultra Rare0.3%

Play With A Developer

Play a game with an NS 2 Games developer

Ultra Rare0.7%

Napolean's Heir

Defeat Germany 1944 as France 1940.

Ultra Rare0.7%

10X Red

Win 10 times while playing Redfor in any game mode.

Ultra Rare0.9%

Almost Victory

Fight a game to a draw in any game mode.

Ultra Rare1.3%

10X Blue

Win 10 times while playing Blufor in any game mode.

Ultra Rare1.3%

Multiplayer Victory

Win a game against a human opponent.

Ultra Rare1.4%

Together For Victory

Win a game against the AI in coop mode.

Ultra Rare1.5%

Italian Victory

Win a game as Italy

Ultra Rare1.9%

French Victory

Win a game as France

Ultra Rare2.1%

Steel Rain

Conduct a barrage with over 120 barrage value.

Ultra Rare2.1%

Beta Tester

CAOS Beta Tester

Ultra Rare2.5%

Russian Victory

Win a game as Russia

Ultra Rare2.5%

British Victory

Win a game as Britain

Ultra Rare2.7%

Acceptable Casualties

Win a battle while suffering at least 100 losses.

Ultra Rare3.1%

US Victory

Win a game as the United States.

Ultra Rare4.5%

BLUFOR Victory

Win a game while playing as Blufor.

Very Rare5.1%

German Victory

Win a game as Germany

Very Rare5.5%

REDFOR Victory

Win a game while playing as Redfor.

Very Rare6.7%

Single Player Victory

Win a game against the AI in single player.

Very Rare8.5%

???

Hidden achievement — tap Reveal secrets to spoil

Common94.4%

???

Hidden achievement — tap Reveal secrets to spoil

Common98.9%