Artifacts.
http://i995.photobucket.com/albums/af73/Flogger23m/bf42013-10-2821-07-52-75_zps80f18067.jpg
Latest Nvidia drivers. BF3 was working fine just hours ago, so I am assuming it as a BF4 issue.
I have the same issue, it was a flicker of disco colour for those texture panels. Also the framerate was about 50% worse than BF3 at the same settings. Though, I was not using today's Game Ready driver. Just installed that so will be trying again.
Despite that issue, I toughed it out in my first game because I didn't like to "quit" (the only thing I was Top 1% In The World in BF3 was my 3% Quits stat ). Also had to play as Recon because I planned on using DMRs for all kits.
CQB + bolt-action sniper rifle + iron sights + disco graphics = not fun Ended up getting more kills with the pistol than the rifle