Just place a machine gun soldier on the map and let him engage some bad guys whilst attempting to use the full-auto firing mode. Place yourself at a distance of 300m + regardless of whatever settings are used in the config, he will fire at a much slower rate of fire hard-coded at 0.2 even if the weapon is set at 0.08 in the config.
"Tested using Stock A3"
"Tested using Modded Weapon Config" so the only FIRE MODE present to both player and AI is fully automatic and rate of fire set at 0.08
- Result
AI will fire at correct rate of fire when player is very close to their position. But will revert to firing at 0.2 once player is past 50 + meters.