Bang!
Throwing several grenades down, Kyle eliminated the giant mutated ants that were waiting for them on the floor below. With Kate's help, they could basically determine the location of these giant mutated ants and whether they could enter or not.
After that first step, they entered and staged another massacre to make sure that none of these giant mutated ants would survive.
The second floor was similar to the first floor where they could easily stage the massacre to the ants.
But the third floor contained rank 2 and rank 3 giant mutated ants. It took them significantly longer time to deal with these giant mutated ants and cleaned up everything. When it was done, they were all so tired that they decided to rest for the day.
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