I posted this in the general discussion, but thought that it would be better suited here.

When you first spawn into a game please check if you are the squad leader, you can check in the squad chat channel in the warbardge, or if you spawn into the battlefield you can quickly check by holding R2 and clicking the right stick to see if you can issue orders.

By selecting an order you can then place it on a squad mate (player highlighted in green). In doing this you can earn more war points so that you can use orbital bombardments.

The most useful order is a Defend order, you can place this on yourself or a squad mate. Instead of getting 50 points for a kill your squad can now get 60 war points plus the squad leader gets +10 points for every squad kill. The squad can then get more points for every objective hacked, armour repaired, ammo refilled, player revived and assist's made within a certain range of the order.It is best to issue these order's to players that wont die too easy and who can get lots of kills, every time the player dies or changes fit the order must be reissued.

To obtain an Orbital Bombardment your squad must gain 2,500 war points. When you have enough you will get a small blue message in the top right corner of the screen beside the kill feed saying an OB is ready for use. Then find a good place for cover and hit right on the D- pad and select it from there. This will bring you to the map, where you can decide where to drop it, look for the little ants running around or wait for your team to light up a large group of them and watch the fireworks fly.