In Age of Defense 4, you'll need to be a little more serious, better prepared, and have more experience with working with the great warriors who want to get to the cave full of food, water, and nutrition.
The cave is also guarded by soldiers. You will need to make your army as strong as you think they can be so they can get past the soldiers with axes, spears, stones, or other weapons. Try to save money so that you can send the army against fighters who are close range. Those who throw different kinds of bullets, like slingshots, will need to be watched, and you'll have to hit them in the back so you don't die. This is the best way to get as far as you can in the mission that just started.
Have fun and good luck!
