You don ' t have to remember any keyboard shortcuts , usually , but it ' s almost always quicker to use them instead of the GUI equivalents . <| sep |> It does stack with extended mags . Not sure what the exact mag numbers are , but they do stack . In Multiplayer , of course and possibly zombies . <| sep |> REAL PEOPLE NOT ACTORS <| sep |> I know . What I said applies . <| sep |> Thanks for that one man ! I ' ve added it to the list above <| sep |> An incorrect opinion <| sep |> I don ' t get how some people get so emotional about nonutility gestures that are only about the gesture itself . By nonutility I mean that any normal , ablebodied person can such a thing for themselves with no effort at all . Things like opening a car door , opening a door , scooting out a chair , and so on . I guess the American popculture programming hasn ' t had enough of an effect on me on that front .