Tankist001 released an updated version of his first addon, the Russian Pacific Ocean Marines, on the BI forums.
In this update he corrected the sniper and renamed .pbo files.

Quote Tankist001 :
At last I've done my addon!
These are Pacific Ocean Marines in digital camo. It's a retexture of Russian Soldiers From ArmA II. This addon is for Combined Operations. I also retextured some weapons and added new sounds.