Decided to turn my comment into an answer.
The first picture you posted was a picture of Vector from Resident Evil: Operation Raccoon City. You can find a description and picture of him here. Additionally, if you search for "Resident Evil Vector" in Google images, you'll see a plethora of images of him.
The second picture is also from this game, although I'm having trouble verifying this with a reference or image. This is the best I could find (which also has Vector).
Here's the info on Christine Yamata, the person in the second picture, also from Operation Raccoon City.