ArmA: Combat Operations

Unlock all armory items:
During the game play press SHIFT + KEYPAD MINUS and type "getallgear"
as a cheat code.

Mission skip:
During the game play the game press SHIFT + KEYPAD MINUS and type "endmission"
as a cheat code.

Unlock all single missions:
While playing the game press SHIFT + KEYPAD MINUS at the Single missions
menu screen and type "missions" as a cheat code.

Unlock all campaign missions:
While playing the game press SHIFT + KEYPAD MINUS at the Campaign menu
screen and type "campaign" as a cheat code.