The probability of modifying humans into Zerg Knights was very, very low. Out of about ten soldiers, only one might succeed. And once it succeeded, the combat power of the Zerg Knights would increase geometrically!
Not only could they turn their bodies into armor, but they could also travel in space with their bodies and fight in space!
Their weapons were extremely powerful too, the most powerful one being the corrosive particle-beam cannon which could easily pierce through a Second-Order Planet-level space carrier! Even Fifth-Order Planet-level space carriers or Stellar-level Space Carriers would only end up with the choice of self-destruction upon encountering a large group of Zerg Knights.
And the time needed for such a modification was only… 10 days.
This meant that if the Zerg army could trap those humans on Earth, they only needed 10 days to wipe out any threat there and enslave the rest to use as materials for modification.
