Good luck with that.
The Mexican Naval Infantry Corps has the highest kill/casualty ratio in the world, 22-1.
The Marines are at 8-1 the Army is at 6-1.
The only part of those guys you can see on their raids is their eyes. Because 70 percent of Mexico is in the employ of the cartels and they pay very well. They find out who you are, they kill your whole family and THEN they kill you.
It's corruption on a scale so massive they can't even stem the tide anymore. How do you make tactical plans when your Intel will either be false or leaked? How do you plan tactical raids when you don't know which members of your team are compromised and which ones are terrified?
The cartels are merciless, and they are legion.
The only people safe in Mexico are the tourists.