The biggest causes of death in bf2, pr, and irl combat is the lack of cover, lack of communication and poor judgment and assessment of the situation. Be aware of your surroundings, and not just the immediate threat. Bear in mind good places to run for cover, avoid areas that put you and your squad at immediate risk. Cover your squad! don't just look at the feet of the guy ahead of you, look around every now and then. Report anything that looks out of place. When your squad is out in the open or in urban combat, don't just run aimlessly from building to building. You'll all lose perspective and lose the ability to aim should you come under fire. "Leapfrogging" either single or in pairs is by far the best way to maintain cover and keep up the pace. (One man runs across to cover while the squad covers, he stops and gives cover while the next man runs across, then the 2nd man covers the 3rd, and so on). "Slice the Pie". Never just throw yourself around a corner or into a doorway, it takes you time to scan the new area and makes you a easy target in the process. Quick, jumpy movements get noticed easily. Instead, back up from the corner/door a bit, strafe your way around it. You can maintain a good sight picture without exposing your entire body at once. Communicate! You may see an enemy, but your squad may not. If you open fire, they have no idea where to return fire or the safest place to take cover when they come under fire. After all, the enemy may not be trying to hit you, instead try to scare your team into the open where they become easy targets. He turns 1 target into 6. Judgment and Assessment. Don't just run around firing at random or at everything that moves; you may get the attention of a stronger enemy that was previously unaware of your presence, and you'll be giving your position away to everyone within earshot. Be stealthy, get to your objective unnoticed. Then you can catch the enemy off guard and fight on your terms. If you just fire at random (whether you kill your enemies or not), his buddies will know it and you'll be walking straight into an ambush. Above all else, use reason and common sense. Remember that your actions don't just affect you, but everyone around you as well.