-To get this achievement you have to be the engineer class and reach RANK 3.
-You must purchase the "Command Post Upgrade" perk in the engineer tab under abilities.
-You just have to access the command post wheel for an extended period of time (you will see a progress bar in the center with "upgrading", once full you are complete).
-Note: This cannot be done on the command post your team begins with.
I did this very easily in a private match with the following settings:
Game Mode: Objective
Play Mode: Solo
Min Team Size: 0
Max Team Size: 1
Once you start change to the Engineer, then select Find health command as your objective, follow this, sit at the menu as the upgrading progress bar fills, once completed the achievement should unlock.
That simple less then 5 mins.