I got level 30 commander in ANTIQUITY age!
This week I ran a challenge with my community to reach level 30 army commander in antiquity age, and we literally got it done on the last turn of the age! Now we're going for highest level fleet commander in explo, and squadron commander in modern age. Highly recommend this challenge, it was super fun.
Rules: Get as many promotions as possible on a single Army Commander, a single Fleet Commander, a single Aerodrome Commander, Squardon Commander and Aircraft Carrier.
Settings: Standard size map, standard speed, standard age, deity, regroup, 10 turn countdown, shift-entering allowed to get full 140 turns.
My strategy: Ashoka to start celebrations when declaring formal war, Lion's capital memento (50% XP during celebrations), Sengoku Civ (50% XP card), Terracotta (25% XP), and Military City State bonus Age of Heros (50% XP I believe).