The mzungu classification is to be taken by loads of salt.
Being able to take mzungu orders was not being war-like - Swahili, Nubians and kambas filled the ranks from escorts to porters for subservience.
It followed these would have easy access to guns and have a gun culture thus easily graduating from arrows to guns even for cattle herding while Bantu resistors gun was a capital offence thus machetes which were a farm implement. There is no motivation to guard potatoes, yams and maize with guns.
Then issue with superior weapons. A drone nerd will take out hardened Al Shabaabs, Talibans or Hamas.