http://sknr.net/2013/09/01/infamous-second-son-and-killzone-shadow-fall-preview-from-pax-prime-2013/
Neat little write-up on someone's impressions of hands-off time with Infamous and hands-on time with Killzone.
http://www.youtube.com/watch?v=cByGPaT5xJM
This video gives us an idea of how the loadout for your character will work in the new Killzone. This guy has chosen an assault class. The video shows that as an assault class, he had five different primary weapons to choose from. On down the list he had a choice from one of two different scopes, which looked like red dot or holo, and below those was an attachments group that appeared empty. I'd like to point out that he had one primary selected the whole time which I believe is a shotgun. I noticed the checkmark next to that weapon while the others never had one. The reason I point this out is because it is possible that selecting another weapon might change the scopes and attachments available. The lack of attachments for the shotgun he had could either be because that particular weapon doesn't have any or because they weren't unlocked. GG confirmed a while back that attachments for weapons would be one such kind of reward for completing challenges. This video does confirm the suspicions of some people. That scopes would be considered separate from other attachments. It should also be noted the text underneath each scope. Whereas the Holo scope says it increases magnification by x1.2, the Dot Laser says it increases weapon accuracy. Not sure if that's just flavor text for the scope or if it will actually automatically increase weapon accuracy in exchange for not increasing the zoom.
Then we see that the assault class has a choice from one of two sidearms. The sidearms also have a choice from one of three attachments. Flashlight, Laserpointer, and Silencer which sound like they do all the same things they would in Battlefield 3. We can then see two different types of grenades. One is your typical frag grenade but I can't make out what the other one is. Perhaps it's the stun grenade. We also get to see how the selection of abilities works. The assault class has only one choice for its primary special ability which appears to be the Nano-Shield. For its secondary ability, the class can choose from three different ones. Speed Dash, Stun Blast, and Drone Buddy. I would like to point out that the Nano-Shield, Stun Blast, and Drone Buddy special abilities all have the Mk. I designation with them. It is possible that more powerful versions exist for the player to unlock. There also appear to be 10 different honors in the game. Honors are apparently special effects you can apply to your character. When you select an honor, a bar in the upper right will charge as you do things that generate points for you. Once it is full your combat honor will activate. I've only seen two different honors so far but one is faster movement and the other is reduced recoil.
http://www.youtube.com/watch?v=w_BZqO75yy0
http://www.youtube.com/watch?v=fC8Re1IE7BA
These last couple of videos are just to show off how smooth the game runs.