I've read that the tactics of the Selous Scouts are still examined today by special forces around the world. It makes you wonder how good they would have been had they gotten more support.
In the regular army, if someone lost a compass, they could face court-martial. They were extremely low on supplies due to the British led embargo.
One of my teachers at school was an officer in the Rhodesian Army, he used to tell us a bit about what it was like.