After the recent 7-20-12 update, I've been getting glitched black spots and scopes flying around the map. Is this happening to anyone else :\

For example: on grave digger I would see raining acog scopes following me around and blocking my sight while on rattlesnake I would see a group of itech scopes flickering.

Also on kill creek certain parts of the maps go black.

I have tried replacing my chams but all of them are the same :\ I don't want to switch to those red chams or whatever. May I get some help please =)