Sorry guys but I signed a legal document stating that I can't release photos or vids. Still, I'll address your questions in order.
What are the graphics like
I would say they are on par with CoD4 only with a brighter color platte and a slightly more fictional look.
How is the gameplay?
Easily the best part of the game. You get to choose the weapons you spawn with. I prefer the marksmen and the carbine but what you want to do as a squad is gage your surroundings and choose weapons that compliment each other for any situation. For anyone that played the first Resistance, you'll notice the carbine aim is completely different. With most weapons you will be aiming down the sights and the zoom button is now on L1, very much like CoD4.
Does it lag?
Not at all, but there aren't many people in the private beta so I can't take that for granted when the game releases.
How is the weapons
Sick. The auger let's you see through walls even as a human when you zoom in, same with the bullseye when you tag someone. The auger is now a shitload more powerful and has a higher rate of fire The marksmen is kind of like the equivalent to the BR in Halo but it's a ton of fun to use. It's actually my favorite gun. The biggest noob weapon though is the mini-gun or the wraith. It's unbalanced because you can just throw a shield out in front of yourself when you're taking heavy damage and have your team back you up while you gun people down at the same time. Aside from that, great.