Handing over control of the dungeon not only did not make Ye Han feel disappointed, but instead he breathed a sigh of relief.
To be honest, he is really not suitable for this kind of job of taking care of people. He has to take care of the food, drink and urination of thousands of people. Just thinking about it makes his head feel as big as a bucket.
After the delivery was completed, Ye Han was freed from complicated affairs and devoted himself to dealing with military issues and dealing with the giant insects in the city.
The Marine Corps' extermination operation was effective, but it didn't take long for the insect population to recover, and it was clear that some insects were using that passage to get into the underground city again.
This was going to be troublesome. If it was just to eliminate more bugs, then Ye Han didn't need to worry about them. He only needed to send troops to eliminate them day after day, so that he could continue to eliminate the giant bugs.
But the task given to him by the superiors was to destroy the insect swarm that invaded the dungeon, not to consume the strength of the insect swarm here.
In this case, as long as the passage on the parapet wall is still there, eradicating the insect swarm will always be a beautiful thing.
In order to end this annoying battle as soon as possible, Ye Han gathered Xiao Yuan and others for a meeting.
At the meeting, Ye Han sent a floor plan to others: "This is the North Third District of the underground city, the area where the insect swarm dug through the protective wall. What we have to do is to find a way to block the hole in the wall of the North Third District!
"
The floor plan of West Sixty-Four is filled with large and small irregular polygons. Each polygon is a residential area in the underground city, and each area is filled with squares representing buildings and colored symbols representing passages.
line.
Among them, the core area is the largest, and other areas are large and small. The large ones can accommodate thousands of people, and the small ones can accommodate hundreds of people.
The North Third District is a medium-sized residential area. According to the marks on the map, there are more than 700 residents in the North Third District.
"Captain, do you have a plan?" Xiao Yuan asked.
"We won't come looking for you." Ye Han said.
Ouyang Ping said: "It is not difficult to blow up the passage, but the blown passage cannot stop the insect swarm at all. It will take a few days at most to dig it out. We must find another way to repair the protective wall!"
"This is not a problem." Ye Han said, "The underground city has a lot of building materials stored in it, and we can also ask for support from above. The problem now is how to blow up this passage!"
Xiao Yuan said: "That place is full of bugs. We have too few manpower. It is best to find the exit of the passage. It is more convenient to explode from the outside."
"It's very difficult." Ye Han said, "Ningwuguan has not moved anywhere. We have been observing for several days and found nothing unusual."
Luo Qi said: "The insects must have come from underground. The exit to the outside may be hundreds of kilometers away. It's not easy to attack from outside..."
"So we can only think of a solution from the inside?" Ouyang Ping scratched his scalp hard, "We are separated from the North Third District by several districts. Each district has a large group of bugs. A strong attack will definitely not work unless we attack them one by one..."
"Stop making trouble." Xiao Yuan said, "There are just a few of us. There are so many bugs over there, and there is a passage behind it. How many of them will be killed and replaced? When will we be able to defeat them?"
Luo Qi said hesitantly: "How about blowing up all the passages?"
Xiao Yuan spread his hands: "How can we get there if it explodes?"
Ouyang Ping thought for a while and said, "How about asking the core area? They might have a solution."
Ye Han thought it made sense, so he immediately contacted the core area and spoke directly to Director Qu, who had just arrived a few days ago. A few minutes later, Ye Han got another floor plan and shared it with others.
This floor plan is smaller than the previous one. There are still more than a dozen different areas on the map, but the size of each area has been reduced a lot. Some thin red lines start from the core area and connect all residential areas.
String together.
Xiao Yuan asked in surprise: "What is this?"
Ye Han couldn't hide the excitement on his face: "This is a secret door left during construction!"
"Ah?" Luo Qi couldn't believe his ears, "Is there a secret door in the dungeon?"
Ye Han smiled and said: "This is a map of the underground city's maintenance passages. These passages are as secret as sewers, connecting the core area with all residential areas!"
Several people looked at each other in disbelief.
Xiao Yuan said: "Captain, isn't this too coincidental?"
Ye Han said: "I think it's too coincidental, but Director Qu doesn't need to fool us, right?"
"That's true...then what are the length and width of these passages? Can they accommodate our armor?"
"It's seventy centimeters wide and two meters high, so it's no problem to install the armor." Ye Han said, "But Director Qu also said that there are many pipelines in the passage. I can't tell whether the armor can go in now... In this way,
Xiao Yuan, please arrange for two people to go over and take a look immediately!"
"Okay!" Xiao Yuan agreed.
Ye Han added: "Assuming that the passage is passable, then our plan will be easy to handle. My idea is to attack in the east and west. First, create some noise near the North Third District, give the illusion of an all-out attack, and mobilize the insect swarms to attack several nearby districts.
Move, take advantage of the lack of troops in the North Third District, and let Ouyang Ping's group sneak into the North Third District and plant explosives to blow up the passage. What do you think?"
Ouyang Ping said: "It's no problem to sneak into the North Third District, but once we have a fire with the insects, the transferred insects will definitely come back to help, and then we won't be able to put explosives, so I think we must open up the passage leading to the North Third District.
Only by blowing it up, isolating the North Third District, and completely dividing the insect swarm can we succeed."
"Okay!" Ye Han nodded, "But how can we install the explosives in advance without letting the insects discover it?"
"Drone?" Luo Qi said three words.
Xiao Yuan's eyes lit up: "We might as well use drones on the passage in the North Third District!"
"You can try it!" Ye Han agreed, "Ouyang, make arrangements immediately!"
"Okay!" Ouyang Ping said a few words on the radio, and several soldiers who were good at blasting immediately tied explosives to the mechanical spider and carefully controlled the drone to sneak into the occupied area.
The Marines took the initiative these days, and the two sides launched desperate battles in various occupied areas. The walls in each residential area were either penetrated by digging insects or exploded by explosives. Large-scale collapses could be seen everywhere, and many places were even completely turned into ruins.
What you can see at a glance is a cave hall full of rubble, instead of residential areas with a view of only a dozen meters at most.
Even the main passages of various residential areas were destroyed in several places by the fighting between the two sides.
Therefore, the spider does not need to walk along the passage at all. As long as it enters the fallen area, it can look for bunkers everywhere and eventually slowly approach the target.
If not, Ye Han would not agree to this plan.
Everything went well at the beginning. The mechanical spider kept moving among the ruins and rubble. However, there were too many bugs in the occupied area. Before the mechanical spider could reach the place, it was discovered by springtails running around.
