Wrote this up on PS3T.org. Almighty was asking about a weapons guide. If you guys have anything to add let me know.
Hawk Weapons:
The following are all of the weapons available for the Hawk. When you start off in the Hawk you're only given Swarm Lasers and your machine gun. Your machine gun never runs out it but it will overheat. You use it with the :r1: button. The rest of the weapons you obtain via pick ups on the map. They are color coded and look just like the image in your weapon wheel. You toggle your weapons with the dpad.
Defensively you're given the flares :r3: to help you scrub missiles. If you're having trouble dodging then hit :r3: and it'll throw the missiles off your tail.
See each individual weapon below for a short description of it's use and value.
Swarm Laser: Pick up is purple in color. These are missiles and they're fast. They're very effective but not too powerful. It will take quite a few of them to deal a good amount of damage. They go well with the machine gun. Light up your enemy with the machine guns as you're releasing the missiles for the most effectiveness. You can unleash 8 at once depending on how well you've locked onto your target. They're the most common of the weapons. You hold down :l1: to lock up to the 8 missiles onto your target; tap :l1: to determine how many missiles are released onto your target.
Homing Missile: Pick up is yellow in color. Unlock in Warhawk the homing missile isn't very affective against pilots online. The AI in single player has trouble dodging them but most online players dodge them easily. They are very powerful and deal a ton of damage but good luck hitting someone with them with as slow as they are. You hold down :l1: to lock one missile onto your target; release when ready.
Flak: Pickup is orange in color. The flak weapon is my new best friend. The best description I can give is to think of it like a shotgun in the sky. Just get close enough behind your opponent and tap :l1:. If you're fast and close enough they'll go down in two shots. For maximum effectiveness start off by hitting them with the machine guns.
Air Mines: Pickup is green in color. You simply release these into the air and if an enemy comes near them they attach and blow up. Four release at a time. They're great defensive tools.
Clusterbomb: Pickup is lightgreen in color. This is your biggest and baddest air to ground tool. What I mean is, if there's something or someone on the ground you want to take out from your hawk then you'll want to use this. It releases 4 very powerful bombs onto the ground. Just line up the site in the general direction on the ground where you want it to go and release. It's not an effective air tool as the bombs are heavy and start falling to the ground right away.
Cloak: Pickup is purple in color. The cloak essentially makes you invisible. It is timed and runs out eventually. It's best used to get away from enemies if you're overwhelmed or to be sneaky and stealthy.
Shield: Pickup is blue in color. If you're in defense mode and are being chased by hawks then set your shield on. It'll help absorb some damage. It doesn't last forever though so make sure you get away and get on the offensive.
Torpedo: Pickup is dark blue in color. This is Starhawk's version of the TOW. It's not my favorite and I don't like it as much as I enjoyed Warhawk's version but that's ok. This is the mother of all bombs. It will destroy the enemy's shield, they're structures etc. It is super powerful. You have to hit :l1: and then let it charge. Once it's charged you can direct it where you want it to go and then release it. BoOom. Be careful though because your hawk will follow and if you aren't fast enough you'll go boom with it.