Its for cocking sounds, as my old Spec SLR sounds great when you cock it. And also the sound of the mag going in and out. The gun shots themselves are allocated already.
It is a futuristic fantasy game! hence it does not have to sounds like an SLR.
EA do have huge librarys of this sort of thing. But they want something new,hence my friend who does all the sounds/samples wants my SLR. As he heard before and loves the metalic sound of the bolt opening and closing
I look forward to seeing the final product, Im sure SafariSwing will be playing the game for ages! hahah