Here is the full list of all 11 Land Doctrine achievements.
Design and develop first generation tank
Design and develop second generation tank
NEW_ACDesign and develop third generation tankHIEVEMENT_DESC_1_2
Annihilate an enemy battalion
Gain 70 experience on a battalion
Gain 90 experience on a battalion
Train 100,000 soldiers in a scenario
Win 25 battles
Win 100 battles
Win 500 battles
Win a scenario