I have NO idea of what I'm talking about, but as a guess from the use of the language:
A Swing Over would be a change from one direction to another, such as Zurich's ILS 14 approach and swinging over to runway 16 about 30 seconds before touchdown. In a swing over, there is only one change in direction.
A Side Step would be a switch between 2 parallel runways, where you use an ILS of, say 18R and jump over to 18L once you've sighted the field. In this manoevre, there would be two changes in direction - turning towards the 2nd glidepath and then turning onto it, so I guess this would be a little trickier than a swingover.
Like I said, I have no idea, but the language seems to make sense.
The only thing you should feel when shooting a terrorist: Recoil.