Thanks to your construction crew, you can build or improve buildings on your base. The construction crew is present from the start of the game.
These troops report to the Deputy Minister of Defense for Construction. The military construction crew enjoyed the status of a proper military unit – the "construction batallion" – and was charged with one key objective: provide support structures to military personnel. Depending on the number of personnel employed on a construction site, the total military construction force can be grouped into military construction regiment, separate military construction companies and etc.