Mission complete (complete is an adjective describing the mission.) mission completed (completed is a past participle answering the question is the mission complete?) Mission@yukielika mission makes it seem like it is very important. They are forms of ellipsis.
I'd say the second version is a bit more popular. For example, their mission might be to. The army might use mission.
It is often made up of many tasks and is the final goal. Ambas frases, mission abort! y abort mission!, se utilizan en contextos similares, especialmente en situaciones de emergencia o cuando se necesita cancelar una operación. Which phrases/sentence are correct, and if they are both correct, which one is more commonly used? (the) mission (has been) completed!
I am on a missionit means you have a specific goal in mind, you are taking on a specific task that you consider to be extremely important she is on a mission to locate her sister after the. Mission complete (complete is an adjective describing the mission.) mission completed (completed is a past participle answering the question is the mission complete?) On a mission being determined to do something difficult or dangerous in order to achieve your goal.