Capítulo 581: International Special Forces Competition Begins

Only the genes from jaguars were present in this serum. 

The characteristic features of Jaguars were that they were sturdy and quick., and their sharp claws could tear through flesh! In comparison to lions, which were at the top of the food chain, their distinctive feature was their burst performance within a short amount of time. They could even fight among the treetops of the forest, while tigers and lions, although being the kings of the forest, were quite restricted in terms of their fighting environment.

Therefore, Xu Cheng chose the jaguar's genes for Diesel to try. 

The Deviant mercenaries practiced the drills every day, while the engineers continued deeper into the ground behind the mountain.

Xu Cheng stayed in his basement that day, and Diesel had a reaction the same night he was injected with the solution.