Because the capital base has a population of nearly two million, so many people will naturally attract the attention of a large number of mutant beasts, especially mutant rats and mutant cockroaches, the two mutant beasts with the largest number in the underground world, their reproductive ability is too terrifying, even if they are cleaned up by survivors and capital base soldiers every day, their number does not seem to have decreased much.

Every day, thousands of mutant rats or mutant cockroaches are attacking the outer defense line of the capital base, and the capital base has almost sealed all the subway passages and gaps with reinforced concrete, but for the mutant rats and mutant cockroaches, the two kinds of burrowing ability are very strong......

Chapter 246 of "Getting the Underground Base at the End of the World" Choice 1 is in the middle of the hand, please wait a while,

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