It doesn't say much either way.

I'm from the UK, we had the ("real") IRA put a RPG-22 anti-tank rocket at the walls of MI6 HQ (the UK version of the CIA): https://en.wikipedia.org/wiki/2000_MI6_attack

Dangerous things like these are not expensive, compared to even low budget small-time group.

I mean the RIRA is a splinter group of the PIRA which had massive funding from overseas, especially from the United States. PIRA was not a small-time group.