Tips for online play:1. Headers - tap the header button once to initiate targetted player and then hold the button with a direction - this works even better on corners with the jostle button.
2. Shots - never let the bar build up to full, half way is preferable but two medium length taps are good for volleys and rebound goals.
3. Defending - always use a sweeper, he cuts out the cut back goals you see so often in most games.
4. Defending - Use centre backs with defensive runs placed as far back as they will go - this makes a through ball goal much harder to achieve and also protects you from fast counter attacks.
5. Defending - When selecting the closest defender next to the ball never press backwards on the stick always fin front of the advancing player to avoid easy run throughs.
6. Pressure - I keep this at 0 but 10 to 20 is fine as it gives you SO MUCH time on the ball and counteracts high pressure abusers, leads to more open play and passing play.
7. Agression - Put it at 100, the refs are lalalala and everyone else does or you will be jostled off the ball endlessly.
8. Play at least 3 up front, I prefer 4, Striker to Center Forward is a must for quick interplay. set them to make runs up, up left, up right, left, etc all different to confuse defence.
9. Passing - set it to 100 players constantly make runs (confusing defence) and keep it free form/safe/short as there will usually be a player to lay off to, especially is low pressure is chosen, helps against high pressure absuers.
10. R1 button - use it - pass around your centre backs and instigate runs with R1 which give you more passing options and creates gaps.
11. L1 + x, the most underated move in the game, pass around your midefield with this move to really torment their defence, ally it to a deft through ball for great wing play.
12. Crossing - Never just cross the ball, cut back inside defender and cross, it puts the defenders on the back foot and gives a better percentage of goals from forwards.
13. Crossing - Use SEMI get INSIDE the box making a diagonal run and then single tap the cross button for easy FORWARDS goals. The closer you get to the byline the better....
14. Chip the keeper on 1v1, everyone knows it works, most times.
15. Use tele camera full zoom out, full height for a full view of the pitch and greater appreciation of player/opponent positioning.
16. Defending - DO NOT CHASE - don't chase the attacker, make a run parallel to him, if he is coming wide you will get to the keeper faster than he will forcing him to make a lalalala shot from an acute angle, if you have a sweeper he can't cut the ball back for an easy goal.
17. The finesse shot is useless online, takes too much time, don't use it.
18. Centre forward make runs at defence, press L1 + X twice for a perfect one two from striker, preactice this in the arena it is DEADLY!
19. NEVER EVER EVER EVER pass to the first defender from goalkeeper, use a half power goal kick from keeper to reach further up the field, if you muck it up at least your sweeper can cover you.
20. BUILD UP PLAY - put it to 100, you will score on corner clearences and quick wing play, most people do not have their defenders making backward defensive runs, and with 4 forwards making offensive fast build up runs you will swamp them and they will panic and you WILL score.
21. You can use custom tactics online, it's no secret, edit them offline and choose them from the D-Pad down in game.
22. Free kicks - 25yards - hold R1 aim the player well outside the wall, power up to half way or thereabouts, press forward and inside on left stick eh voila a Ronaldo special with power and bend - adjust power for distance.
23. This is not a glitch! 40 to 50 yard free kicks, hold r1 and sqaure button aim well outside post let it rip full power while pusing up and left on left stick. More than once it has bounced in front of keeper and over his head or for a deflection easy goal. Plus it's funny as lalalala!
24. Corners - Aim for outside of penalty box, nearest to you, use 3/4 to full power with full left swerve on and use Heading tip for scorching forcefull headed goals. Practice this in the arena!
25. Hoof it - play lob ball as manual, use L1 plus square to hoof the ball up the pitch when you are under pressure, sure it's unpredictbale but i once saw Gallas clear the ball from his six yard box to the opposition corner flag. One minor caveat: it takes longer to build up the power on manual so you need to have some space unlike assisted. Occasionally your forward gets on the end of it for a legend wait for it ary volley into the oppositions top corner.
26. NOT A GLITCH - when you have a throw in midway from the centre line to the opposition goal line throw to a free player and use L1 + square with the left stick held down diagonally and up towards the goal. I have scored numerous top corner lobs with this or gotten on to the end of it with a well placed volley. It is a laugh also beacuse the ball seems to gain extra speed with the spin and a goal with it leaves the opponent gasping in exasperation at the kick off.
27. Use the D-Pad to select Ultra Offensive when you get a corner (as long as you ahve a sweeper) it forces the players in and around the box to go more aggressively for the ball. I reckon it increases the percentage of goals I get from corner. Immeadiatley reset it though....
28. Tips 'n Tricks
http://www.fifa-community.com/index.php/tutorials/tips-n-tricks Excellent resource!
29. Easy goals from crosses. Use 2 strikers in your formation get to the following point marked by the X and tap the cross button once or twice on semi crossing, et voila Striker gets a top corner header. Works so often it is probably a glitch so we should all know about it. The box shows the optimum area for crossing....Crosses from the wing very rarley work, diagonal runs as close to by line are FAR more effective....

30. Cut out cut back and through ball goals easily. Use one of your 4 defenders on standard formation as a sweeper with a defensive run. Simples.....
31. If you come up against BARCELONA or REAL MADRID use high pressure formation with a sweeper and CHELSEA who wipe the floor with these 2.....I have never lost with CHELSEA against these so called wonder teams. BOSWINGA is a devine sweeper....
32. Think 2 passes at least ahead. Often notice how good players manage to ping pong it about from defence to a goal in 6 seconds. They use short safe passing and look ahead of the first pass. Noobs tend to think of only the first pass and then look for the second, ELITE look around as they recieve the ball and have a course plotted before the first pass....It is a hard skill to master but essential if you are going to be competitive...use Barcelona for easy ping pongorama!!!!
33. If you find you are having few scoring chances in a match switch up one to more offensive or ultra offensive. If you are letting in goals in a match switch down to defensive. I use the slider constantly in a game and it does work wonders....
34. If you have the cojones for it, use your goalie to run up the left hand side of the pitch and launch a full power lobbed through ball. It's a proven fact that most defenses in Fifa 10 do not protect the wings much and more often than no you will find your winger in an advanced position. Obviously this is risky but it does work...
35:Fifa engine is in layman terms based on reaction speed to the server. There are 3 ways to increase your reaction speed artificially.
1. always play with the usb cable connected.
2. always attach ethernet directly to router.
3. always attach router to master socket.
I have a nifty program that records PS3 button press reaction times on an Apache server. With these you recieve a 10 - 100 millisecond advantage over bluetooth and telephone extensions. In Fifa that is quite an advantage. It is essentially like having a super ping...and we know what that means for COD4!!!
Try it, it works, around 90% of those who try it notice the diff a lot!
The formation:
I use free form for attack, organised for cover defence, build up play 100%, passing up very high for more forward runs, creativity. Not really messed with shooting crossing thing, pretty much default.
Arrows are simply player runs, not messed with attitude thing at all. If you are level 19 and only lost 4 times you don't need my tips!!!
This is a rookie setup to stop through ball and cut back goals. It is designed to soak up pressure. But with a build up of 100%, 100% passing and short/safe passing you soak up the pressure and break fast on the counter attack with plenty up front to SWAMP the opponent.
As I say be prepared to soak up the pressure as the sweeper keeps the other players onside but they have to resort to long shots as passes into the box are useless for them and the sweeper cuts out all through balls and passes across the defence.
If you want to step it up a level, just put a sweeper with a defensive run and your standard formation but you will be a wee bit more open to through balls and across the box passes....
As an experiment just use your normal formation but switch the fastest LB or LWB to sweeper. Your goals against will fall dramtically. Cross the box goals are like through balls in Fifa09 and low shots in Fifa08, the most widely scored goals...
BUILD UP PLAY:
Speed: 100
Passing: 100
Positioning: Free form
CHANCE CREATION:
Passing: 20
Crossing: 50
Shooting: 50
Positioning: Free form
DEFENCE:
Pressure: 10
Aggresion: 100
Width: 70
Defender line: Cover
Source: http://forums.electronicarts.co.uk/fifa-10-sony-playstation-3-microsoft-xbox-360/848847-fifa-10-online-tips-top-100-a-11.htmlDifferent opinion:Set Aggression to 100 if you want your defense to be dismantled by 1-2 passes and hold your breath everytime an opponent plays an aerial throughball. I guess I'm more cautious in my approach to the game because I hate giving up cheap goals but I definately don't agree with settting agression to 100 unless your opponent is completely clueless.
I also don't agree with holding the L1 button and having players make senseless runs downfield. This is noob style of play. Use one-twos in sensible situations like when your opponent is coming at your attacker from an angle. Or if it looks like your opponents defender has his momentum moving towards your attacker.
I also believe that you SHOULD chase the attacker if the numbers are in your favor. For instance if you have 4 defenders vs. 2 strikers as a striker recieves a pass from midfield you should definitely pressure him. Certainly don't give him space and time to let his players come up in support, get the ball out of the danger area!
I feel that pressure should be in the 50's-80's. When pressure is too low your opponent will have too easy a time bringing the ball up the pitch after winning possession. Keep pressure reasonable high and have your player defend from the front. If your opponent makes a mistake transitioning from defense to offense you'll be in for some easy goals.
And by the way if you guys are getting knocked off the ball a lot you should try to turn the defender by shielding the ball or using close control/skill dribble, otherwise pass it to a teammate before the defender engages the attacker. Defenders in this game can seem to be overly physical with attackers but there are many ways to cope with that.