In fact, there were many illegal gangs of different sizes in every country, and they didn't do bad things all the time. Sometimes, the government also needed them to deal with criminals. Moreover, illegal gangs normally wouldn't betray their own country.
All in all, the existence of illegal gangs didn't only do harm to the country.
Tang Bingsen came to the house with two mercenaries this time. He wasn't worried that his secret might be exposed because the meeting was already arranged well and he simply came to visit his friend.
The two mercenaries knew nothing about his real purpose, they only needed to protect him.
When Tang Bingsen arrived at the outside of the house, he left the two mercenaries in the car and entered it alone with the deputy leader. They headed straight to the underground room.