Even for the Mexican civilization NPCs, grain and grass are undoubtedly the most critical prerequisite for warfare, as long as their grain and grass reserves are destroyed, the shape of the attack and defense of Aguarabas City will immediately change.

However, there is still a lot of distance between the opportunity to discover the grain and grass reserve point and the destruction of the opponent's grain and grass, and the most effective way to destroy the grain and grass supply is undoubtedly the fire attack throughout the classic battles in history or romance.

At this time, Yang Rui once again remembered Zhang Ninglai, when he was dealing with Yuan Shao's subordinates, Yang Rui had used the Dao Wind Flying Carpet and the System Fu Seal, and used Fire Rain with Zhang Ning to attack many times, all of which achieved very good results.

However, Zhang Ning was not around at this time.

Fortunately, Yang Rui had previously harvested two large flying pets, the Golden Harrier and the Flame Falcon, in the exotic space, and if used properly, they should also be able to serve as fire attacks.

Yang Rui's first thought was to let the soldiers take two large flying pets to drop the fire source, so as to attack the enemy food and grass concentration of the Mexican civilization NPC, but it is also very similar, it is one thing to think of, but it is a little troublesome to really do.

The materials that ignited the fire are not a problem, Yang Rui has stored a lot of flammable materials such as fire oil and sulfur in the Sky City, and from the current situation, Yang Rui is still prepared for storing these flammable materials.

However, the Golden Harrier and the Flame Falcon are both birds after all, and their feathers are a huge obstacle to fire attacks, and as monsters, they are born with a lot of fear of fire.

If you have a few characteristics, it is not easy to use flying pets for fire attack, so there is a way to solve the problem. However, it is not difficult to implement.

The next two game days. Yang Rui and the others in addition to dealing with the siege of the Mexican civilization NPC counterattack army. He has been exploring how to use flying pets for fire attacks, and has conducted many experiments in the open space of Sky City.

Perhaps it has a certain connection with its name, after several comparisons, Yang Rui found that the fear of fire and the proximity of the two flying pets, the Golden Harrier and the Flame Falcon, are different, compared to the Flame Falcon, which is a flying pet, is easier to approach the fire, so after selection, the fire attack finally landed on more than 2,000 Flame Falcons.

After pondering again and again, Yang Rui, Gao Shun, Guo Jia, Xu You, Dian Wei, Yu Ban and others finally thought of a more ideal way. The burning charcoal is placed in a wooden box, and the Yellow Turban Soldier rides the Flame Falcon flying pet to deliver it.

The wooden box containing charcoal is more special, Yang Rui deliberately asked the carpenter to make a lot of holes in the box, so that after the wooden box is thrown into the air, the air flow can be transparent, and the charcoal that runs through it will also be ignited again!

This design is naturally from Yang Rui's idea, and has been unanimously praised and praised by Gao Shun, Guo Jia, Xu You, Dian Wei, Yu Ban and others.

With the protection of a wooden box. This also isolates the source of fire from the Flame Falcon flying pet, so that it does not burn the feathers of the Flame Falcon. There is no question of zài fear.

Later, Yang Rui and others made further improvements to the wooden box, simply made two layers of inner and outer layers, with many holes and permeability between each other, and between the inner layer and the outer layer, Yang Rui loosely filled some sulfur and sawdust dipped in fire oil, so that it was easier for charcoal to spread after causing an open flame.

In the game, it has been three days since the final finalization of the "aerial bomb" designed by Yang Rui, and after many deliveries, although some wooden boxes were not ignited in the end for various reasons, most of the wooden boxes were still verified to work.

Therefore, before the arrival of the evening of the third game day, Yang Rui prepared enough wooden boxes and processed charcoal, and after making a detailed grasp of the grain and grass cantonment points of the more than a dozen armies of the Mexican civilization NPC, he also sent more than 2,000 Flame Falcon flying pets and the Yellow Turban soldiers on them to start the fixed-point delivery mission.

If you want to completely destroy the opponent's grain and grass reserves, you must attack more than a dozen Mexican civilization NPC armies at the same time, otherwise, if one side of the fire is together, it will definitely arouse the vigilance of the rest of the armies, and it will be difficult to achieve the goal.

"Whoosh! Sou! Whoosh"

"Crackle"

"Boom! Rumble! Boom"

“”

Almost around the same time, one by one, the special wooden boxes were thrown by the Flame Falcon to more than a dozen grain and grass camps outside the city of Aguarabaas, and most of the wooden boxes were ignited by the air flow that penetrated them shortly after being dropped, turning into fireballs one by one, whistling towards the ground, and finally smashed open into a ball of flames

For the first time, the Mexican NPC soldiers didn't even know what was happening, and all they could see was the fireball of the wooden box burning the city, and the scene of the fire smashing into the ground and igniting a large fire, and by the time they realized what was going on, the raging fire had already begun to spread!

"Fire!"

"Fight the fire!"

"Fighting fires"

“”

On average, there are more than 200 flame falcons in the sky above each grain and grass station, and the wooden boxes they carry are not only one, but often in the number of six or seven, so calculated, the number of "aerial bombs" eaten at each grain station is not even less than 1,000!

Even if some of them deviated, or were not ignited normally, there were at least hundreds of fire points erupting at each grain storage point, and the grain and grass itself was very flammable, and there was no water source and strong protection measures around, so almost every grain storage point lost control once ignited, and the raging fire quickly turned into a sea of fire.

Yang Rui also made a choice about the timing of the fire attack, which was approaching the evening, almost the most exhausting stage of the soldiers after the siege of the city, and there was some wind, so the fire was even more difficult to control

The next thing seems to be simple, the fire broke out in the rear, and the siege that was about to end naturally stopped, and the Mexican civilization NPC soldiers rushed to join the ranks of firefighting, but once the fire started, the result was almost doomed!

By the time more than a dozen Mexican civilization NPC armies brought the fire in the camp under control, it was already the third watch. (To be continued......)