The Government Headquarters is a building exclusive to Qubba. It is where you can receive missions to progress this storyline, which there is actually only one. It is where you meet Oswald Raff, the leader of the desert's corrupt government. To complete this storyline, you must go here and when you talk to him, you have to compliment him. If you insult him, then the storyline can close up forever. After getting the mission, you leave the city for two hours, come back, then go to Fort Goks, and from there you go to Verdammter Platz. Then you can go back to Qubba and receive your payment.