Killzone 2

There are two difficult places in this level. First, when you meet the Alpha group, you will be attacked by three waves of enemies. Alphas cannot die, but they can be injured and you will have to help them get up. Go to the place where Alpha is standing and hide in a corner so that they cannot shoot at you from both sides. The second difficult place will be at the end of the level in Visari Square. There will be many enemies there, hide behind cover and don't stick your head out unless necessary. When two heavy soldiers enter the square, sit behind the stationary cannon on the right and shoot one soldier. After which you can do the same with the second heavy soldier, but be careful, by this time ordinary soldiers will arrive and will shoot from all sides while you are behind the machine gun.

Elite chapter walkthrough:
https://www.youtube.com/watch?v=qxefQfHCqck&feature=related

https://www.youtube.com/watch?v=wzShFnchIHk

https://www.youtube.com/watch?v=DqOXx0UQ_JQ&feature=related