The upgrade of the city means that the upper limit of all monsters' ranks will be increased. Meanwhile, the cost of the whole underground city, including some empty domain classes, will rise sharply.

That is to say, Lotte has to spend 150 million yuan this month. Once the city is upgraded, the cost will soar to more than 250 million yuan. This is the monthly monster salary and the maintenance cost of facilities and equipment.

This does not include the 50 million needed to upgrade the city.

"At present, our daily income is 15 million, 10 days is 150 million, 30 days is about 450 million. It seems that there is a surplus of 200 million even with the cost of upgrading, but in a month's time, I don't know what will happen, so I have to keep my savings. "

That is to say, before we get a new energy source, we should make do with the level of level 4.

So what should I do if there are 5-level guys coming over?

The level suppression tower here is about to be completed. Once it is lowered, all the high-level monsters entering the city will be suppressed to level 4, which is equal to the guard force in the city.

Outside, there are UFOs with upgraded machine gun caliber and ammunition patrolling around, so they are not afraid that high-level enemies will stop the intersection.

The only difficulty is that the ground forces are all level 4. Although air support can kill level 5 enemies for them, if the number of level 5 enemies forms a certain scale, or they participate in street fighting, they will be a little weak.

"So the upgrade of the city must be increased, but if we don't find more and more sufficient energy sources, we can't afford the huge cost after the upgrade."

"My lord?" The goblin looked strangely at Lott talking to himself and asked, "what's the matter with you?"

Lott shook his head.

The next step, then, is to find more energy sources to increase energy revenue - money to support the huge empire state building without letting it collapse.

"My Lord, the knight is calling."

Just as Lott was thinking about his way out, the goblin said suddenly.

As soon as Lott heard this, he quickly looked up to the front.

On the big screen, Vader's head appears.

"Lord, this island of watch is already ours."

"... is it..."

In one day, we took down an island of 100 square kilometers - the size of three Macao.

"Our main objective in this battle is to take down their transmission array, so as to cut off the continuous supply of troops and supplies from the other side. Here, I used some new tactics

The Black Knights talked about their operational ideas. For example, when the front-line forces attacked, they dropped a large number of troops into the rear. With the support of precision guided bombing, they destroyed their transmission array at the first time.

And then all that's left is for the bombers to plow all over the island where there's life.

Finally, let the ground troops line up and sweep all the way.

As for what was used in the middle to interfere with spirit and block communication, the Black Knight seemed to be very handy. Most importantly, when he was commanding at the front line, he also took time to direct the underground palace cleaning work of the intelligence officer.

"The island is clean. What are you going to do?" Asked Lott knowingly.

What else can we do? Of course, we have to build a huge military fortress and aviation base on it.

So, you still have to ask for money.

Lott looked at the only 1.2 million left in the energy display and shook his head with a wry smile, saying that the matter of the base should be put off for a while until the energy is available tomorrow and the day after tomorrow.

Today is about 23:00 p.m. on Wednesday, and there are 27 days before the expiration of next month, so we have to figure out the way to increase energy.

"Vickers, is there a human city around? The village will do Asked Lott.

The goblin looked down, then looked up and said, "there are three smaller ones. They are in the northwest, far away from us. They were just detected by the reconnaissance plane a few days ago."

Lott: "let Curtis and yalman go over and explore. Vida, get two of the scarabs back to the city, and then replace the two in the north and West. The extra two will serve as the bargaining chips for Curtis. "

Vickers: but my Lord, diplomats are now negotiating with the Duchy of Doras

Lott: "give him two days to finish it for me. No matter what way, yaman will help me. If necessary, let the Scarab in the east come to support me."Vickers: Yes, my Lord

Vida looked there for a long time, and then said, "Lord, are we short of people over there?"

“........”

This is not nonsense?!

No population means no energy, no energy, you fight a fart war!

"... yes." After brewing for a long time, Lott only choked out these two words.

"In that case, I have a proposal here. I don't know if you will agree."

The Black Knight looked a little hesitant. It was the first time that Lott saw him like this, so he asked, "what proposal?"

Vader bowed his head and pondered, then looked at Lott in front of the camera and replied, "you said before that our main customer group is human beings, rather than human species. Once they enter, they may cause panic among local people..."

"Say the point." Lott sank.

Vida: "yes, just a few days ago, three overseas immigrant tribes landed here. It looks a little big. I think they are all civilians, so they didn't order to fire. Then they opened a temporary settlement for them in a certain open space on the shore. Of course, the settlement is separate. After all, they are three different types of groups."

"Probably due to the long-term wandering at sea, some diseases have appeared on these ethnic groups. Although these diseases will not affect our army with the air, if we let them go for a long time, it is bound to cause pollution to the nearest human city, so..."

As soon as Lott heard it, He interrupted

"Send me those biological information, and inform the human medical team to check it. Remember to do a good job of body protection to avoid being infected by the virus."

"Yes, my Lord." The goblin nearby replied quickly.

Then, on the big screen in front of Lott, Vader's head shrinks to the upper left corner, and three different kinds of intelligent creatures appear in the middle.

One of them has long rabbit ears, and the other features are similar to those of human beings. The skin surface looks a little smooth and fluffy, which is called the ear tribe.

Vida: "according to my preliminary observation, the physical characteristics of this race seem to be more excellent than that of human beings, that is, they are physically adequate. Each one is dressed in a unique colorful animal skin as clothing, which has the occupation of a soldier, while there seems to be only one person who is similar to a magician. Their civilization seems to be a bit backward, at least the brain melon seeds are not very flexible. "

"Second, black cattle, where most pathogens come from..."

"Put these things in quarantine! They are only allowed to move outside. They are not allowed to get close to the human city. Pull up the high-pressure barbed wire for me! As for the rabbits, the medical team must check the situation for them at the first time. I want this race! " Lott's eyes flickered as he stared at the Horde.

"What about the other one?" Vida asked.

There are only 50 monsters left, with pigeon like heads and feathers all over the body... A bit like Bibi birds robbing the road in dreams.

"Call them birdmen. The number of these guys is too small. " Lott shook his head.

"My Lord, they are not refugees, but are similar to the nature of the observer mission. They have just sent envoys to say that they want to talk with us."