Dunno. My guess is that they used longer range weapons, normal blades, and even their bare hands while wiping out jihadist scum in Iraq and Afghanistan. (Hint: The best private security firms hire retired SEALS, Delta Force, and the like. Sure Trump can afford them.) Pretty sure they can handle some narco-thugs...
I know that because one of my friends is a retired SEAL sniper with a “1 mile kill” badge. He works private security now, and he gets paid VERY well.