Supreme Commander 2
47 Achievements
1000
40-50h
Xbox 360
Xbox One
Xbox Series
Knows it All
Complete all primary and secondary campaign objectives
25
How to unlock the Knows it All achievement in Supreme Commander 2 - Definitive Guide
Maelstrome26
TrueAchievements
TrueAchievements
This is quite simple really. Make sure that you press the back button to display your objectives and follow their various requirements in each mission. Majority of the secondary objectives are research items, so you should be able to get this achievement without much hassle, as long as you keep a list.
There's a very handy list on the Xbox360achievements.org website. (http://www.xbox360achievements.org/game/supreme-commander-2/...)
There's a very handy list on the Xbox360achievements.org website. (http://www.xbox360achievements.org/game/supreme-commander-2/...)
3 Comments
I don't like the posting of a link and the flat description.
By Epsilon Theta on 09 Jan 2016 13:21
Is there a way to see what I missed?
By XI AlphaMale IX on 13 Mar 2016 18:15
SkarviT
TrueAchievements
TrueAchievements
To see the Primary and Secondary objectives you must press 
on the current mission of the game.
Sometimes you will see Secondary objectives that are completely the opposite of a Hidden objective, so you will have to do the mission again to achieve the achievement:
The Completist achievement in Supreme Commander 2 worth 158 pointsComplete all hidden campaign objectives
on the current mission of the game. Sometimes you will see Secondary objectives that are completely the opposite of a Hidden objective, so you will have to do the mission again to achieve the achievement:
The Completist achievement in Supreme Commander 2 worth 158 pointsComplete all hidden campaign objectives
Cra
If you press 
can see the objectives you have to complete. However in some missions you have a "time limit" or the missions are scripted. Save on a regular basis and you should be fine. For a list check the mission achievements.
can see the objectives you have to complete. However in some missions you have a "time limit" or the missions are scripted. Save on a regular basis and you should be fine. For a list check the mission achievements.