A very useful thing to do with all soldiers except for the engineer is to lie prone when shooting. When you lie down your accuracy is greatly improved and you don't suffer the nagative effects of recoil. If you are a sniper the site will barely move. You also become a much smaller target. If you are out in the open and come under fire, the best thing to do is to quickly hit the floor and locate your assailent. This move can save your ass quite often when you get shot at. Your enemy will have to adjust his aim, and if he isn't prone recoil will make his fire extremely inaccurate while your fire will be right on target.
If you are a Spec Ops Soldier, you can plant C4 on vehicles and detoneate them. It takes 1 charge to take out a LAV (light attck vehicle) like a Hummvie, buggie, of snowmobile. It takes 2 charges to take out a MAV (medium attack vehicle) like a 30mm of a 23mm tank. It takes 3 chrges to take out an HAV (heavy attack vehicle) like the Abrams or other 120mm tanks. you can also make "carbombs" by placing C4 charges on an LAV. You then drive the car at an enemy unit or vehicle, bail, wait until it gets close enough, and detonte it. Be careful however, as your car will only be able to withstand small arms(pistols, riles, etc) fire because anything larger will set off the C4 and send you straight to hell.
These are underrated and extremly useful. for example, say theres an enemy tank blasting at you with its cannon. Throw a Flashbang at your feet and it will be blined. It will still be able to see your red dot above your head, but at least you'll have some manuevering roo. You can then run like hell to get away, or better yet throw some C4 on it and blast that bastard to hell. You can also throw them into a room before you go in which will give you a great advantage. Your own flashbangs won't stun you, but if you getblinded by one, hit the dirt and drop a smoke grenade at your feet if you can untill you recover.
There are 3 types of tanks, 23mm, 30mm, and 120mm. The 23mm are useful for shooting down enemy helos and killng foot soldiers. If you try to kill a foot soldier, aim directly at them, naot at their feet because your high ROF will cut them down. If you're trying to shoot down a helo, aim it the ockpit if possible. You can sometimes kill the pilot, which makes it easier to take down the helo. The 30mm tanks have secondary weapons on them like 50cal machine guns, rockets, and GTAMs THese tanks are great for suppressing the enemy because they have powerful rounds and a high ROF. These are also good for killing infantry because they have splash damage and you can shoot at their feet, although one direct hit can kill a soldier. They can also be used for shooting down Helos (helicopters) and if they have GTAMs you can lock on and blast them. The 120mm tanks are the most powerful and most heavily armored They can withstand 3 RPG rounds if hit in the front. These are great for taking out LAVs, but are at risk from mainly 30mm tanks because they have a very slow ROF and if they miss a single time in a shootout, the'll probaly get wasted. Nevertheless, if you become accurate with these behemoths you can kill almost anything. Even though they aren't designed to take down helicopters, they are very good at it, especially light helicopters the the US appache or littlebird, as 1 round will do the trick. It takes 2 rounds to take down the heavier choppers like the MEC helos or the Chinese helos.It is also easy to get the Bronze star with these if you can camp outside an enemy base and continually blast the doorways or entrances.
The choppers are the games most difficult vehicles to master. The best way to become more skilled in these is to start a game with helos and practice shooting empty cars, tanks, buildings, signs, etc. You should learn to circle-strafe and continually pound an enemy. Be carful however, as you must always be aware of towers, masts, and other tall structures. Although it is easier to hit targets from a low altitude, be careful! You are almost always being watched by the other team as you are the only thing flying around. If you go too low, you become easy prey to rockets, tanks, and even smallarms. If you're being attacked be another helo, the best thing to do is to climb. Get altitude, as it's much easier to hit a target if you're looking down on it, rather than up. You also become a much harder target to the nemy chopper and it's buddies on the ground. If you heat your helo getting targetted be a laser designator, the best thing to do is get low. If you are over water, you can sometimes dodgethe missile by making random movements. If you're on land, come towards the ground at a low angle and bail. If you're lucky, the chopper will survive the fall. The missile will usually miss the parked chopper, and then you can get back into it and repair it. Be smart when you're in a chopper. If you're taking a lot of damage, bail. The stupidest thing to do is to stay in the helo. If you're taking fir from a tank, try to dodge it. If you can't, bail. You're likely to get shotdown anyway. At least give yourself that chance of survival.
Don't do stupid things, thats how you get killed. For example, don't charge blindly into an enemy base, you'll probably get wasted. Take your time if you can. It'll end up being much faster andproductive then continually spawning, charging in, getting wasted, and repeating theprocess till you get lucky. Also, try to buddy up, don't travel alone. You're much easier prey that way. When the game round first starts, and hop in the drivers seat of a helo or LAV, don't take off. Wate untill you get loaded up and your not sranding your buddies. When a conquest game first stars, don't go for the closest flag if your in a LAV, go for the farthest or most important, let the slower vehicles take care of the closer bases.
This is the section for all those losers who are too lazy to play the game properly. To easily get medals and points, there's someting called boosting. Request a new game in CTF mode if you want to get killing medals, and a conquest game if you want Helo medals or points. Invite some of your friends and work together to get the medal. For example, say you need the experst killing medal, go to the other team and let your buddy kill you 4 times. Or if you want points, take turns taking bases. If you're camping in an enemy's base during a real game, park a tank on a repair bay. This is the cheapest thing you can do durig a game, because when you take damage, you'll simply heal. Be careful however, as if you get laser targeted, your vehicle won't survive the blast.