I just check my copy of murphys laws of combat that hangs of he wall here. I did eight in the corps and they all ring true. here are a few that you should keep in mine.
in coming fire has the right of way.
If the enemy is in range so are you.
Doing anything can get you killed ... most of all doing nothing.
The last one is the one to remember. Indession is the biggest killer in combat . make a dession and go with it. if its a bad one work with it. You guys keep your cantines full, your safey off and your ass down.
Tom Elliott
U.S.M.C