If you want to correct it, go to FPS Creator directory, files>gamecore>guns, then the gun that you want to correct. In the gunspec of the gun you will find a command chamberedround = 1 (as stated by ncmako). Then either remove this command or change the 1 with 0. Also there are other things that can be tweaked but I find the default to be more practical and rational. And the same logic is even applied to the game Battlefield 4. And if you want a better gunspec, you can find a damn nice collection of it in various threads of the forum, just type gunspec in the Thread Subject Search box.
