The appearance of the Exoskeleton Armor helped them withstand the devastating firepower of modern weapons.
Gao Xin successfully helped Su Lei awaken the Exoskeleton Armor.
In fact, he helped Su Lei awaken not just this gene module.
Long before the encounter with the viper, as soon as Gao Xin was on Su Lei, he used the Neuro Puppet Technique to help him awaken to the third overclocking level along with the Exoskeleton Armor.
Otherwise, where would Su Lei get the third overclocking? He could only achieve the second level at most.
Each level of enhancement was incredibly difficult to reach, and Gao Xin also took a shortcut by using the Rousi gene.
Similarly, Su Lei relied on Gao Xin's support.
He was originally at the second level, and with the gene module injected by Gao Xin, it made the awakening easier for Su Lei, who already had a solid foundation.