Tang Hao walked in the spacious and bright underground city. Qin Yunshan beside him was hale and hearty. As he walked, he introduced: "this is the third floor of phase I of the underground city. At present, this floor is temporarily the four departments of logistics department, interior department, R & D department and medical and health department!..."


    The planning of Qinyun mountain is very large and detailed. Seven floors are designed for the first phase of the underground city alone. The permanent population is 120000, and the maximum wartime population is 500000!


    Now the whole underground city phase I has been built to the fifth floor, and the upper three floors have been put into operation! The first and second floors are mainly barracks, weapons, equipment and combatants. The third floor is the medical and health department and logistics department. Originally, the fourth floor was the R & D department, the Ministry of interior and other departments. The fifth and sixth floors are residents, schools, hospitals, training and protection departments!


    The construction of the whole Taoyuan base and underground city is divided into three phases. The design scale has a resident population of 500000 and a wartime maximum population of 2 million. It will be completed within two years!


    At present, two entrances and exits have been built in the underground city, one is located in the Daping in front of Taoyuan Hotel, and the other is 60 meters away from the main entrance of the base.


    In addition to the initial scale of the construction of the underground city!


    The outer wall has long been completed. Many places are built on mountains, undulating and spectacular!


    The most striking thing is that two giant fortresses have been built on the peaks on both sides, the front door and the back mountain. The eight giant fortresses are like eight giant beasts guarding the Taoyuan base.


    Each fortress is equipped with two heavy machine guns and four light machine guns. 150 elite soldiers are stationed all year round. In case of war, members of the base can quickly enter the fortress for reinforcement. Up to 600 soldiers can be accommodated in each fortress.


    In the four months since Tang Hao disappeared, Taoyuan base has not been silent under the leadership of Qian muxue. All aspects of business have been carried out very well. At least in Tang Hao''s view, many places have exceeded his expectations and are better than he imagined!


    Even Tang Hao is born. Even if he is here, I''m afraid he can only do this at most!


    The population of Taoyuan base soared from more than 20000 at that time to more than 100000!


    Among them, the number of evolutionists has reached more than 22800! It has exceeded 4:1. This Billie is still the second to none and the only one in some large bases in the whole middle Xia country.


    Under the leadership of academician Tan Li, the R & D department has formed four categories of genetic drugs: 1, 2, 3, 4. The highest has been able to cultivate level 4 evolutors!


    In Taoyuan base alone, the number of evolutionists at level 4 and above has exceeded 5000, reaching 5127!


    Even excluding Tang Hao, Zhang Xiaohao and Shen Wenbing, these three level 8 strong men!


    Taoyuan base, with strong combat power, is also among the best in the large bases of the whole middle Xia country.


    This is not only because qianmuxue, Ouyang Mimi, Yuan Jun and other strong people have strong strength, there are a large number of elite evolutors at level 4 and above, and weapons and equipment also occupy a very important factor!


    Speaking of weapons and equipment, the Ordnance Department headed by Zheng Yu and Yuan Jianguo has also achieved fruitful results in these four months!


    Three bullet production lines have long been put into operation!


    Today, 36000 bullets can be produced every day.


    More than one million bullets are stored in the warehouse.


    Source energy firearms, source energy weapons, including source energy equipment and flying feather boots, are not only equipped by qianmuxue and other senior managers, but also equipped with a considerable part of middle-level personnel!


    More than 70% of the 5127 elite evolutors have at least one source energy equipment in their hands or on their bodies.


    With the return of Tang Hao this time, he brought back a large number of high-level zombies and the bodies of high-level mutant creatures. With the work enthusiasm and efficiency of the group of scientific research enthusiasts from the scientific research department and the Ordnance Department, I''m afraid within ten days, the elite evolutors at level 4 and above in the base can have at least one source energy equipment.


    "Leader!" Cheng Yang, Vice Minister of R & D department, hurried over!


    "What''s up?" Tang Hao asked as soon as he saw the other party''s posture.


    "We have made some new discoveries in the evolutionary crystals you gave, but there are too few samples at present. Do you still have that kind of evolutionary crystal?" Cheng Yang said rudely.


    "Yes! Of course!" Tang Hao smiled!


    Many things in the ancient castle are quite mysterious. The speed of time, there are new zombies, zombies and mutant animals that do not appear outside, and the energy of the evolutionary crystals in their bodies is much higher than that in the outside world. For this reason, Tang Hao did not give the evolutionary crystals collected in his hands to Qian muxue and others for the first time, but took out some of them to Tan Li for the first time, Let Tan Li have a good study!


    Unexpectedly, after only one night, Tan Li''s team made some new discoveries!


    Looking at Tang Hao''s hand, she took out a whole twenty silver evolution crystals as big as her thumb. Tan Li''s eyes twinkled and said, "leader, how many evolution crystals are there in your hand?"


    "There are more than 170!"


    Tan Li''s spirit was shocked: "these evolutionary crystals, it''s best not to take them directly for the time being. Give us three days, we should be able to develop the fifth generation gene evolutionary agent. With luck, level 4 evolutors may be able to enter level 5 with only one injection!"


    "The fifth generation gene evolution agent? How many of these evolution crystals can produce a fifth generation evolution agent?" Tang Hao asked in a deep voice. Tang Hao already has a rough data on the evolutionary crystals in level 7 zombies and level 6 mutant animals in the ancient castle. He wants to judge how much efficiency can be improved by using these to make gene purifiers.


    "One, this evolutionary crystal only needs one, or maybe not one, to make a five generation gene evolutionary agent. Of course, this is only the main material. We also need to add other evolutionary crystals and other auxiliary materials!"


    Can you make a dose without one or even one?


    In other words, if all the evolutionary crystals in their hands are made into genetic agents, they can create at least 200 level 5 evolutors!


    Tang Hao frowned slightly!


    This quantity is not small, but Tang Hao is not very satisfied!


    Because this batch of evolution crystals in his hands, if used to promote level 7 evolutors, can almost make four level 7 evolutors enter level 8!


    In today''s battle, the super strong is the decisive factor!


    To tell the truth, if you are a level 8 strong person, I''m afraid one person can kill a level 5 evolutionist team of 100 people.


    Therefore, although it can create 200 level-5 evolutors, this number is quite large, but the real effect is not as good as two level-8 or even four level-5 and level-7.


    "The fifth generation of genetic evolution agents can''t stop at giving birth to level 5 evolutors, but should be higher. Yes, level 5, level 6, or even level 7 evolutors can be effectively promoted! For example, one injection can promote level 4 evolutors to level 5 evolutors. Three doses can promote level 5 evolutors to level 6, and six doses and seven doses can promote level 6 evolutors to level 7 "Level." Tang Hao said in a deep voice!


    "Do you mean that the latest generation of genetic evolution agents should be taken across levels and play an evolutionary role for evolutors above level 4?"


    "Yes!"


    "Well, let''s study it carefully, but in this case, I''m afraid the R & D time will be longer!"


    "It''s all right if it takes a long time. As long as the research and development is successful, we can launch level 7 evolutors in batches!" Tang Hao smiled.


    Think about what a shock it will be in the future when you pull down a team under your command, a strong level 7 or even level 8!