Through some test in the game, I find there are some bugs about Gun and scope.
I use ACOG scope, in the game find 8 kinds of guns has bug about scope.
The guns are AR A4, CP16, KBS, MK-SL, MOSINKA, MPS7, PPSHA-41, Vector3.
(1)AR A4 and MK-SL these two guns can not installing scope in the game.
(2)CP16 , KBS , MOSINKA , MPS7 and VECTOR3 ,when use the scope aiming vision , the scope vision is wrong in zoom in or Horizontal line.
（3）PPSHA-41 . This gun's Mechanical sight is not in same line with the barrel.
These guns' bugs may not be all, send to you to know for Debug.