If the enemy is in range, so are you. Incoming fire has the right of way. There is always a way. The easy way is always mined. Try to look unimportant, they may be low on ammo.
Professionals are predictable, it's the amateurs that are dangerous.
Teamwork is essential, it gives them someone else to shoot at. If you can't remember, then the claymore is pointed at you. The enemy diversion you have been ignoring will be the main attack. If your attack is going well, you have walked into an ambush. Never draw fire, it irritates everyone around you.