CoD Demo - How did they do that?

[serthy]

Hey, I just stumbled upon this: https://www.youtube.com/watch?v=rZ1DmT-Qaic
and at 1:40 there is a zoom in to another player. How did they do that, as I'm not able to change players or go spectating in demos?
Any ideas?
This might be a remake etc and blended in, but I saw alot similar recently. Maybe I find some more examples

Here: https://www.youtube.com/watch?v=6GF1d8glgFg alot of times its kind of zoomed out to other players (at least it seemed so)