Observe the people's feelings: 2 hours mainly recommended: strengthening order, inviting war order, punitive order, homing pigeon, urgent military order (five treasures of the battlefield), prompt, recruiting talents list, powder keg, Luban notes and Mohist essays, 3 kinds of Quxing, bronze treasure chest.
Wild treasure hunt:
3 hours: green equipment box, Luban sketch, high relocation, corvee order, marrow washing Dan, Bolebao, silver treasure box.
4 hours: Green Paper, Rare Jewelry Box
5 hours: Khufu, Tunling, advanced weapon rack, leader spirit, gold treasure chest.
The above is not absolute, but the probability is higher.
Traveling incognito: designated generals in the city travel incognito, spending 1 ingot per hour, and gaining 2500 experience. You can get special defected generals, and it may be risky to carry ingots.
It is better to take more than 10 when taking ingots.
But nothing happened when I took the ingot out, and I felt useless.