As soon as the drone surveillance team gets a visual on Aayan at the remains of the attack site, Aayan senses he is being watched, and looks up into the sky directly at the drone that is watching him. With real-life drone surveillance, the person(s) being watched would have no way of knowing that they were being watched, not to mention from any specific direction.
The Pakistani people are seen protesting outside the United States Embassy in Islamabad. However in reality,the building is a fortress, nestled deep within Islamabad's diplomatic enclave, very few people have seen it and it is highly secured for such a big protest to take place.
The foreign language mentioned is Pashto but the actual language used is Hindi, which is an Indian language.
Ayyan, his family and the rest of people in Waziristan are shown speaking Urdu. In reality,the language the people of Waziristan speak is Hindi.
The college at which Ayyan studies is called Omayya Medical College as well as the hospital that is Omayya Medical Hospital. There is no such word as Omayya in Urdu, which is the national language of Pakistan and it is not a word in any of the local languages spoken in Pakistan.
The name of the chief terrorist in this story arc is Haissam Haqqani, which looks and sounds a lot like Husain Haqqani, the name of the former Pakistani Ambassador to the United States.
The black Ford Territory that Quinn drives is made in Australia and exported to South Africa where the show is filmed, but not to Pakistan where the story takes place.
The way Islamabad and the rest of Pakistan is shown are completely different from in reality. The locations,the geography and even the people do not look similar to Pakistan including the clothes they wear.
The locations, and other geographic or cultural details such as languages spoken, are not accurate to Pakistan. (YouTube video "A Pakistani Points out 6 Homeland Fails.")