Although the name was Tower Training, there was no high building around. There even no building around.
In truth, the training place was located underground. There was no one knew why this training had the word, tower, inside when it supposed to be underground. But, nobody really took the matter seriously. It was just a name anyway.
It took 10 minutes for the military staff to explain what necessary for the newbies. There were 10 levels in this training. And, this training lasted for 10 days. The deeper they went, the more benefit they could get. As the training took place in the underground, the first level was near the surface and relatively easy.
However, to get down from a level to another level was not easy. The training participant needed to do some tasks, and it was different for each level. But, the theme was the same for each level, to kill some special kind of animals breeds by the military.