I've some friends who travel to Angola frequently in the oil business (I turned down the $'s) and it is known as one of the absolute worst places in the world to be.
Back in the '80's when the Cubans were there big time, I had some friends working at a beachside oil battery (offshore oil came in for processing and sales) for Gulf Oil. They were protected by 32 Portugese special forces patroling in 2's and had weekly drills to evacuate the compound (by boat) if attacked. There were two fences with a minefield on the outside and Cuban guard towers with MG's every 200 yards....this was to keep people in. Seemed as though the Angolans did not want the US there but they wanted the oil and the Soviets and Cubans did not have what it took to produce it.
They would fly in...be escorted single file on the tarmac to a barbed wire "cattle pen" with Cuban nationals holding AK's. After a bit, they were either escorted in buses with Cuban nationals in the bus to the work location. If by bus they had their version of jeeps and MG's in front and behind...not to protect them but to keep them from getting out. Sometimes they went by chopper which they all preferred.
Yeah, I'd be turning in my gun. Right. We're gonna see that...HA!