The drone lowered its altitude and circled over the airport, the purpose was to attract the attention of the people below, if there were their own people below, they would definitely understand what it meant, but if it was the rebels, it would be difficult to say, those guys would hit anything that flew in the sky, even if it was a bird, they could shoot it down and eat it.

"You figured it out, this is my drone, do they know each other? Maybe you thought it was a government army. Bruce didn't seem to think it was going to really make a difference.

"If their thinking was so simple, they wouldn't be able to live to this point." Si Yunfei said lightly, "Continue to lower the height and scan all the buildings within the airport area." ”

"Reminder, it's already below the safe height." Alpha executes the order, but also makes a suitable reminder.

Just when everyone was staring at the screen, a voice suddenly came from the headphones: "Hey...... I'm Lin ...... Xiao, who is trying to contact us to listen...... Please reply to it. ”

The communication interference was still very strong, the sound was intermittent, and there was a lot of content that could not be heard clearly, but a few people still understood.

"I'm 03, how's your situation going over there?" Si Yunfei said.

"Thank God that you will ...... Yu is back, and we are still alive; I saw the drone. "The sound of the bug is very excited.

"Who rescued you?" Mu Xinxin's voice.

"We're all fine, but we're stuck here and can't get out, where are you? What's the plan? Lin Xiao asked.

"There is no feasible plan yet, there are at least 30,000 government troops on the periphery, most of the city has fallen, and we are not yet able to carry out an effective rescue operation." Si Yunfei told the truth about the difficulties in front of him.

"Don't worry, we can hold on, we are currently in the basement of the airport warehouse, it is relatively secretive, the ammunition is quite sufficient, it can last for a while, but we will withdraw after the battle." Lin Xiao seemed optimistic, but everyone knew very well that this was a comfort to them.

No wonder they still can't be detected and can't contact him after the electromagnetic interference is weakened, it turns out that they have been hiding underground, and there are certain obstacles in signal transmission, and the underground communication situation is of course worse.

"What is the condition of the wounded? Are there a few seriously wounded? Si Yunfei asked.

"It's not a big deal, we have stockpiled a batch of medicine, food and ammunition before the government army enters the city, and we have long been ready for a protracted war." Lin Xiao said, "I didn't expect you to come so quickly. ”

"We'll find a way to get you out as soon as possible......" Si Yunfei thought for a moment, perhaps this was the biggest promise he could give at the moment.

Knowing that the situation of the others was good, everyone's hearts were finally relieved, but the next problem was how to carry out this rescue operation, which was the biggest challenge they were facing at present.

"Hopefully there will be progress on the rebels' side." Bruce said.

"Even if the talks go well, it is impossible for the government troops to withdraw from here, as a military center in the north, this is a place where soldiers must fight, the government army cannot give up this opportunity, even if it can suspend its local offensive, there will be no truce here, not to mention that the rebels may obtain more benefits through negotiations than saving the city, and the mess here cannot be solved so easily even if it is not abandoned." Punch is not optimistic about the progress that can be made in the negotiations between the rebels and the parties.

"It doesn't matter to us how much they can gain, what I want them is for government troops to withdraw from here or for a truce." Si Yunfei said.

"And expect those words to count?" Heavy Punch does not trust the leaders of the rebels.

"He owes us, and he wants to continue to cooperate with us, if this request cannot be fulfilled, then what is the future?" Si Yunfei held a telescope and looked in the direction of the airport, but the distance was too far, and there were buildings everywhere to see at all.

"At least we've made some progress, at least we've been able to confirm that they're still alive, and the next step is for us to take the next step in the rescue operation, do you have any ideas?" Bruce asked.

"There is currently no more effective way than to force your way in by air." Si Yunfei said, he thought about it and said, "Alpha, looking for the weakest point of the government army's defense, it is best to find their defense loopholes, can you guide them through the battlefield through satellite signals to take them out?" ”

"There are no relevant discoveries, the whole city is besieged on all sides, and the smallest number of besieging troops is in the northwest, where there are only 3,000 government troops stationed, and they carry the wounded through the pits in the war zone, which are not big, and our current strength cannot rescue from there." "But I found the city's underground drainage system, and if they could get to the Condal River in the south through the sewers, they would really have a chance of life." ”

"Why didn't you say it earlier?" Heavy punches feel like alpha has been a bit sluggish lately.

"There was no relevant data before, and after the interference subsided, I hacked into their communication system, and by the way, I entered the country's urban construction and planning department, and obtained a huge amount of information about the country's infrastructure, basically all of which were poured into the computer system in the past year, and their system was running quite slowly, and it took me a few hours to fully read the data, which is a scanned copy of a very old map of the city's sewer system, which is an accurate hand-drawn map, and the city rebuilt its drainage system once in 1985. On the basis of the original drainage system was re-planned, after the drastic transformation of the original shaft was expanded and reinforced, this is the latest relevant information I can find, whether there has been maintenance and reconstruction during the period is not clear, whether the drainage system can still be used and there is no intuitive data, but through the analysis of satellite monitoring content in the past few days, the government army threw a large number of massacre of rebel corpses into the sewer, and did not cause any sewage backflow, So I guess there should be some sewerage systems working properly, but in the absence of any data, I can't extrapolate the probability, which can only be considered a suggestion. ”

"Sometimes I feel like you're a machine that's a little too real, and sometimes I think your system is a little incomprehensible in humanization, and your inference without data, although it's not sure whether it's accurate, does provide a general direction and the possibility of existence, and it's a good job." Heavy Punch kindly praised Alpha.

"Plan out the feasible routes first." Si Yunfei really didn't expect this method.

"The location of the sewers where the bodies of government forces have been dumped in recent days has also been marked." Bruce said.

"I'm sorry, but you don't have the authority to give me any orders." Alpha almost only took a second to complete Si Yunfei's request, but the requirements mentioned by Bruce also appeared on the map, Bruce felt strange, and was about to ask Alpha before continuing, "But from another point of view, what you made is a valuable request, and I can take it as a good suggestion, because through these, you can confirm the smoothness of the entire route." ”

"Smart ......" Bruce was finally impressed, sometimes he felt that this system was quite impersonal, and it could be said that there was no human taste at all, but sometimes he felt that this thing was thoughtful and thoughtful.

"The exit location is at the station of the government army?" The problem that the heavy punch found almost at a glance, although the exit was by the river, but where the besieging troops of the government army were stationed, wouldn't it be self-defeating to come out of there?

"75 meters outside the government camp, to be exact, at the outlet of the river beach sewer." Alpha said.

"75 meters is within the defense range of the sentinels, the possibility of being found is quite high, once they are discovered, they can only jump into the river to escape, don't forget that there are a few seriously injured among them, this is a sewage river, do you want them all to be infected?" Heavy Fist asked with a frown.

"If he leaves at night and is very unlikely to be discovered, he can walk a kilometer upstream from the exit and into the mountains away from the government army's station, which lacks night vision equipment, although this option is risky but feasible." Si Yunfei said, "But they have too many wounded, so we have to go in to meet them, send some protective equipment to protect the wounded, and at the same time find out whether this underground passage is really feasible." ”

"Well, I'm going to turn into a rat in the sewers......" Bruce scratched his head again, "If that's the case, we don't need to go in all of them, now is not the time to fight for strength, there are not as many people as the government army, I'll take five people with you in." ”

"That's enough, plus eight of us." Si Yunfei nodded, "The others stayed here and were responsible for monitoring the enemy's movements. ”

"We'll have to wait until the evening." Heavy punch looked at the sky, "There are still a few hours." ”

"3 hours, 25 minutes, 32 seconds of sunset." Alpha data is accurate.

"Sleep." Si Yunfei handed the telescope to Bruce, "Everything is left to your people." ”

"Don't worry." Bruce made an OK gesture.

"Alpha keeps in touch with Lin Xiao, report any situation on their side at any time, and relay our plan to tell them to be ready at any time." Si Yunfei said.

"Yes." "The latest news is that the rebels and government forces have reached a ceasefire agreement on all fronts, but Kanshawar is still at war, and the exact reason is not clear," Alpha said. ”

"It's very simple, both sides are red-eyed, it is definitely impossible to cease fire easily, this is a huge war of attrition, both sides have paid a huge price, how can it be easily stopped?" "So the fighting here could go on for a couple of days, if not longer." ”

Si Yunfei looked at the city under the mountain and said: "If they can't stand up or withdraw the army, then they will continue to fight, the more chaotic the better, so that we can take the opportunity to enter and rescue the brothers." ”