A rising tide lifts all boats.
If the enemy is in range, so are you.
Incoming fire has the right of way.
Don't look conspicuous, it draws fire.
Teamwork is essential, it gives them someone else to shoot at.
Never draw fire, it irritates everyone around you.
Tracers work both ways.
The only thing more accurate than incoming enemy fire is incoming friendly fire.
If you are short of everything but the enemy, you are in the combat zone.
Mines are equal opportunity weapons.
Airstrikes always overshoot the target, artillery always falls short.
Odd objects attract fire - never lurk behind one.
Field experience is something you don't get until just after you need it.