This is a high-end configuration of VT-4, so it can not be Nigeria or Pakistan.
Possilbe options include:
Malyasia, Brunei (from camouflage)
Iraq, Oman, UAE, Kwuait, Saudi, Qatar, Bahrain, Algeria(from 707's words)
I personally think it is UAE as VN-50 is designed at their request, so they may...