I am not sure what grand geo-political calculations the NIF government in Khartoum is engaging in with regards to the UN resolution on Darfur.
It is clear that they have totally misplayed their hands with regards to the outcome of the back and forth between the United States and the Europeans in the Security Council. They were caught off guard by the American compromise on the referrals to the International Criminal Court in the Hague, and their hopes of forever being shielded by their Chinese enablers with the threat of a veto did not pan out.
Now, their choices are pretty limited. They are now looking at potentially having some of their luminaries in Khartoum join Radko Mladic in the list of wanted genocide perpetrators, and without any potential political compromise that will save them and even some of their cynical pursuers in the Security Council.
This is rather bleak, because there would not be any need for any calculation and manuevering if they would carry out their MORAL and LEGAL obligation, and halt and destroy the mechanism of genocide and ethnic cleansing in Darfur.
But doing things the right way the first time has never been the strong suit of the ruling power elite in Khartoum. They prefer to let it burn while launching and supporting hateful religious crusades until they run out of options.
Kinda like the so called second coming of Sallah Eldin Al Ayoubi, Saddam Hussein.