Mozambique Drill is a shooting drill that requires you to land 2 shot on the body and 1 shot in the head, making total shots fired is 3.

What is the first thing to do? Grab a loaded gun and do this in order (the steps):
land 2 shot in the chest area, and last land 1 shot in the head (to finish that mafakaaa)

THE STEP IS:
1. Land 2 shot in the enemy chest
2. Land 1 shot in the enemy head

My tip: If it always fails, dont give up and try another day. You know it's not worth that anger emotion overwhelms while playing game :)
(I nearly gave up doing this achievement lol"

Story of mine getting the achievement:
Idk I just randomly sprayed someone with my airsoft build rifle, in full auto but surely I aimed upperchest-head and somehow gets the achievement :/

Last thing from me, Goodluck, have fun, and have a great day! God bless you all