I'm posting this because I see so many people just playing wrong, I see so many of the same mistakes over and over again. I hope this will help a lot of people improve their game.
- Use cover as little as possible because if you get shot at while in cover, you'll be dead by the time you can move. Stand behind cover instead of using cover when it is higher than chest high (like a wall) because the crosshair will be quite wide for the first second when you shot out of cover; however, just standing behind cover and popping out doesn't cause the crosshair to get so wide. Therefore, you should ADS shoot from cover and do mid-range to long range shooting. Using the cover system isn't bad once you get to a good spot that you know is very unlikely to get flanked from or shot from behind. Basically, you should use cover as little as possible as you are on your way somewhere; once you get there and bunker down is when you should use cover.
- Don't crouch walk around the map. I see this so often. Crouch walking only makes you an easier target to hit and you're moving slower to boot (you are more like a big round ball crouch walking while you are kinda like a pencil when moving around standing straight up). Only crouch walk in certain situations like moving around a chest high piece of cover.
- Don't use augmented camo, it's useless for the same reasons crouch walking is useless. I can see you across the map, the camo is not fooling anyone. Plus, you have to give up your equipment slot; you give up stun mines and the use of claymores to use augmented camo.
- It's not a bad idea to crouch around a corner so if there's an enemy, you can over-the-shoulder shoot him with a lot less recoil than if you were standing upright. If you see an enemy medium range or closer, crouching then over-the-shoulder firing can quite often allow you to win a gunfight.
- You should aim with the free look camera so when you hit L1 to shoot over-the-shoulder or click the right stick to ADS shoot, your crosshairs or scope should be right on the enemy player. You shouldn't be standing still aiming after you hit L1 or scoped in as that is quite an easy way to get yourself killed.
- Push up at the start of the match to take key map positions, then you can camp, don't ever sit in your spawn or close to your spawn.
- Don't snipe on Overpass. Don't snipe in general unless you know what you're doing, you are a support player, your job is to get key kills not get as many kills as possible. You should be the safety value hiding somewhere overlooking an objective so you can stop the enemy for just long enough (with well placed mines and sniping) for your team to get back. Plus you are providing a decent spawn point as well. More than 1 sniper is almost always overkill and it just makes your team a man down when trying for objectives.
- Suppression is kinda useless. All you have to do is back out of cover just a little bit and you're no longer suppressed. Plus, a teammate can flank just as easy whether you are suppressing them or not. Suppression is more useful for your own 1vs1 gun battles than suppressing an enemy to have a teammate flank, plus you are very vulnerable to get shot from another enemy player while suppressing.
- Don't use flashbangs or smoke grenades, they are nearly useless. Flashbangs rarely blind me, I seriously get flashbanged by teammates more than enemies. Smokes are useless because sensors easily defeat them plus you can L1 aim into smoke and you'll get a red crosshairs when over an enemy. Smokes are only useful to hinder long range shooting to the objective and smokes are useful for a very few objectives (like those couple objectives that are in the middle market area of a Market conflict match). Smokes usually hinder your team more than the enemy as it's very hard to cover a teammate capping when I can't see the enemy. EMPs are about 100x more useful than flashbangs and smokes.
- Don't ever give up map position if you don't have to. If have a good front set up and an objective spawns behind you, don't turn your backs and run back to the objective, hold your positions and send one guy back to cap and then defend it by acting as a safety value just in case an enemy does get by your main front unnoticed. Say you're on Mill and your team is on the other side of the river (the enemy's side of the map) and an objective spawns on your side of the map, hold your positions and send one guy back to take the objective. The further you can keep the enemy away from the objective the better. It's alright to fall back a bit to a better chokepoint or something like that, but don't give up a large portion of the map for no reason.
- When defending an objective, you want to be ideally at least 20 meters in front of the objective. You want to set up a front AHEAD of the objective NOT BEHIND it (I see that so often). So that when the enemy pushes past your front (and they probably will after so several attempts), you can spawn and get back to stop the enemy from capping. If your team is right on the objective and the enemy clears you out, you don't have a chance to get back and stop them, which is why that is a real flawed strategy.
- When data hacked, don't let the other team chain the hack into another one. Don't ever push up when hacked (especially by yourself) and immediately look for other teammates on your mini-map to meet up with. Group up and have each teammate cover a flank. Then continue as normal after the hack is over.
- If you notice a teammate is stunned or down just before you die or as you are waiting to spawn, stay dead to see if the enemy gets a hack and then spawn right after the hack is completed and you will spawn without being data hacked yourself.
- Don't overload one side of the map. On Mill, your goal is to not let the enemy cross the river. If the objective is at the graveyard, don't have everyone at the graveyard. Have 2 people at the graveyard, 2 people at the Mill, 1 person watching the middle calling out enemy locations, and have the last guy be a floater giving backup where it is needed. If you wonder why your team got flanked and then later spawn camped, it's because you overloaded one side of the map with nobody watching the other side of the map. If you spawn and see 3-4 people on one side of the map, go to the other side of the map. Sometimes guarding the flank results in huge games for you, sometimes you don't see much action, but you need to watch your flank.
- The prone button is your "get yourself out of trouble" button. If you're getting shot from an unexpected enemy, barrel rolling (AKA pro rolling) on them can allow you to win the gunfight, just going prone can buy you the time to shoot back and get the kill as well. Shooting from the prone position is great because you have almost no recoil while shooting. If you know an enemy is around a corner, barrel around the corner so just in case another enemy is there; if you barrel roll, it'll buy you the time to almost guarantee you get the one kill even if there are other unknown enemies in the area. This is a great way to get objective denials; barrel roll to kill the capper even if you know there are other enemies there, it takes the other enemies just a bit of time to adjust to shooting a guy barrel rolling in instead of a player just running in.
That's all I got for now.