There should be a feature where you can hold your mag when you take it out and can hand it to other people if they have the same gun. Another thing is that it should change the door to a normal one so it feels real the windows are fine but the door feels like it's out of place and if there (or not) is going to be "real" doors hen they should add a battering ram so it can one shot the door open (or if there is not going to be "real" doors then breaks it).