Killzone 2 is an experience that no manual can prepare you to meet, but there are essential basic-concepts and information that if you implement can ultimately mean the difference between survival and death. Use the information in this guide to help you meet the enemy on their own ground and survive to fight another day.
Weapon Selection
In this mission you can carry two weapons in your personal arsenal at all times, just tap the triangle button on the controller to switch back and forth between your first and secondary weapons. If you happen to find a weapon when playing that you want to swap for one of your present weapons, just hold the square button (when prompted) over the weapon you want to use. Your primary weapon will be a heavy weapon, while the secondary weapon is usually your pistol. Always ensure that your primary weapon is the best selection for the battle you're about to take part in. Use the best tool for the job and keep a weapons range, recoil, reload time and firepower in mind when selecting a weapon for a situation.
Weapon Zoom
A large percentage of the weapons available to you in Killzone 2 have a zoom ability that allows you to look through the weapons sights for better accuracy. To implement the zoom feature, tap R3. To leave zoom, tap R3 again and the game will take you back to the normal view. Use the zoom for head shots and long distance accuracy, but make sure you have solid cover and distance between you and your enemy when using the zoom feature. Note: The zoom feature is a mode that slows your movement rate down, so you can be vulnerable using this feature.
Grenades
Grenades can be a touchy weapon to use because if you don't cook a grenade the enemy will usually spot your grenade and have time to move away. Use grenades for crowd control by throwing them towards groups of Helghast soldiers and then shoot them while they head for cover.
You have two types of grenades available for you during game play in Killzone 2, each with its own particular kind of death and destruction. Tap the circle button to throw a grenade or hold the circle button to cook a grenade and then release the circle button to throw it when you think you have cooked the grenade long enough. Pay attention to each type of grenade if you're cooking a grenade. Each grenade type has its own way of letting you know its about to explode, so try to recognize their characteristic actions to avoid any unnecessary accidents.
Melee Combat
Melee combat is something you want to stay away from if possible, but it will be necessary at certain points during your battle on Helghast. Press L1 to execute a melee attack that will knock your opponent back and temporarily incapacitates them. Attack them twice to eliminate them.