Everyone quickly discovered what the so-called "underground facility" was.
In fact, it was just like the entrance to a subway station.
Every foreign warzone was actually a parallel world.
This wasteland was the vestige of a lost civilization.
Being able to see some familiar things was still quite a happy thing.
The entrance of the subway station was already occupied by many alien beasts.
From the outside, it might not seem like much, but when the overlords' Army arrived, alien beasts began to surge out from the inside.
In an extremely short period of time, hundreds of alien beasts had swarmed out.
Most of them were Mantis-type alien beasts, with quite a few Spider-type alien beasts that had never appeared before.
The spider-type alien beast wasn't an elite beast, but its combat strength couldn't be underestimated, at 200 points.
More importantly, their numbers were not small at all!