Lord Dennisson 1/10 Battle Strategy (Troops & Wilderness)
The 1/10 rule. Look at the biggest number of your enemy and divide it by 10. Then apply that same number to all the same troops as enemy has fielded, plus one more type.
For instance, a level 1 wilderness has 500 troop carriers and militia. Take the 500 of the troop carriers, and divide by 10. Train 50 troop carriers, 50 militia, and the next type, the swordssmen.