Call of Duty Modern Warfare PEGI insurance from Austria?

In Austria there's an AT-PEGI version (Uncut) of Call of Duty Modern Warefare with German language.

Is it legal to play them in Germany? Can I order these easily in Austria? Or are there problems when playing in Germany, so because of the console's connection or other?

I would rather have the Uncut version, I think it's stupid if everything is cut. Does anyone know the exact differences? Can they only be seen in the campaign or online?

Does anyone know how this works with the interaction between PS4, PC and XBOX? I think that with the consoles very cool but with PC? Is not that unfair? I mean with the PC one is faster in my opinion, etc.

In Germany it is also cut

In Germany it is never uncut. Alone the emblems are changed because no HK can be seen.

I would be surprised if there were swastikas in MW. This plays in a completely different time. (Or which level am I missing?)

In other parts of COD. I meant as an example. But does not seem to convince me so that I will order the normal and I save 8 euro approx.

It comes out uncut