The enemy diversion that you're ignoring is their main attack. Five second fuses always burn three seconds. When you have secured the area, make sure the enemy knows it too. No combat ready unit has ever passed inspection while no inspection ready unit has ever passed combat. Things which must be shipped together as a set aren't.
Tracers work both ways.
The Cavalry doesn't always come to the rescue. Mines are equal opportunity weapons. B-52s are the ultimate close support weapon. Killing for peace is like screwing for chastity. When in doubt empty your magazine.