At this point in the show's airing, the cast and crew learned that CBS had given SEAL Team (2017) a full series order.
The guy that Jason spots providing bodyguard duty for the target the team are planning to kidnap is a former member of GROM, it means "Thunder" an elite counterterrorism/special forces unit from Poland that helped out Hayes and the team in Afghanistan.
Luka Baljic "The Butcher of Travnik" is likely based on Colonel General Ratko Mladic, a convicted war criminal who led the Army of Republika Srpska (VRS) during the Yugoslav Wars. Between June of 1991 and August of 1995 Mladic led the army under his command on a campaign of ethnic cleansing against Bosnian Muslims, he was in command of the forces at the Siege of Sarajevo and the Srebrenica massacre, between the two incidents an estimated 15-18,000 civilians were killed earning him the nickname The Butcher of Bosnia. After the war ended the International Criminal Tribunal for the former Yugoslavia (ICTY) was convened by the United Nations to investigate the war crimes committed during the war, they issued indictments for Mladic on charges of genocide, war crimes and crimes against humanity and an international arrest warrant was issued by INTERPOL. Mladic managed to evade capture for 16 years due to being sheltered by former members of the Serbian Army, but thanks to intel from the CIA and MI6 Serbian police located and arrested him in May of 2011. In 2017 the ICTY found Mladic guilty of 10 charges: one of genocide, five of crimes against humanity and four of violations of the laws or customs of war, he was sentenced to life in prison without the possibility of parole.
SA-7: The NATO reporting name for the 9K32 Strela-2, a light-weight, shoulder-fired, surface-to-air missile system. First made by the Soviet Union in 1970 a number of these, and other weapons, were "misplaced" during the aftermath of the collapse of the Soviet Union. By the time the new government of the Russian Federation was able to establish order, a lot of former Soviet government and military leaders had made themselves very wealthy by selling weapons from the Soviet Union's massive stockpile accumulated during the Cold War. A lot of the heavy weapons and ordinance being used by the Taliban came from the Soviet Union. Though a decent number of their small arms were sold to them by the US government during the 1980's, at the time the Taliban were fighting the Soviets in Afghanistan, the US operated under the old adage of "the enemy of my enemy is my friend", which they later regretted, as most do.