Complete certain tasks to get each achievement:

Available Officers - 10
Have 10 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 100
Have 100 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 110
Have 110 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 120
Have 120 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 130
Have 130 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 140
Have 140 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 150
Have 150 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 160
Have 160 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 170
Have 170 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 180
Have 180 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 190
Have 190 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 20
Have 20 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 200
Have 200 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 210
Have 210 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 220
Have 220 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 230
Have 230 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 240
Have 240 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 250
Have 250 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 30
Have 30 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 40
Have 40 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 50
Have 50 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 60
Have 60 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 70
Have 70 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 80
Have 80 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Available Officers - 90
Have 90 real (non-edit) officers in Empire Mode. (Data must be saved at that point.)

Cleared A Gathering of Heroes
Cleared when you gain control of all 25 areas in Empire mode scenario, A Gathering of Heroes.

Cleared Battle of Guan Du
Cleared when you gain control of all 25 areas in Empire mode scenario, Battle of Guan Du.

Cleared Divided Land
Cleared when you gain control of all 25 areas in Empire mode scenario, Divided Land.

Cleared Dong Zhuo in Luo Yang
Cleared when you gain control of all 25 areas in Empire mode scenario, Dong Zhuo in Luo Yang.

Cleared Flames over Chi Bi
Cleared when you gain control of all 25 areas in Empire mode scenario, Flames over Chi Bi.

Cleared Yellow Turban Rebellion
Cleared when you gain control of all 25 areas in Empire mode scenario, Yellow Turban Rebellion.

Play the Battle of Chi Bi
Cleared if you play the special stage, the Battle of Chi Bi.

Play the Battle of Guan Du
Cleared if you play the special stage, the Battle of Guan Du.

Play the Battle of Hu Lao Gate
Cleared if you play the special stage, the Battle of Hu Lao Gate.

Play the Battle of Yi Ling
Cleared if you play the special stage, the Battle of Yi Ling.

Play Yellow Turban Rebellion
Cleared if you play the special stage, Yellow Turban Rebellion.

Create an officer, then complete the Yellow Turban campaign