Is the campaign in SH5 really dynamic?

[XenonSurf]

When watching SH5 videos I see that the campaign is subdivised in different mission operations that unlock when you succeed (you can cheat to make them all available by entering a keyword). But does that mean that the campaign is scripted only?
Will there be random encounters during campaign, random spawns? Will the campaign play out differently each time you start it?
Or will it be the same each time, all ships comming from the same bearing, always the same ships, always ship x + ship y ?

So basically, is it SH3/SH4 which have very good campagins that are also open for modding, or is it more like SH2 with nice grafics but with repetitive / scripted missions only?

My preference in a sub sim is not that there is a huge campaign, but only that every situation is different each time you play it through. I know that RSR, SH1/SH3/SH4, Cold Waters, Dangerous Waters, Silent Service I, II achieve this and I highly enjoy these games.

Thanks to give me a campaign feedback for the gameplay of SH5 1.2 + TWOS, which seems to be the best playing solution. Can I play SH5+TWOS all with german voices and still tweaking up or down the difficulty, for instance auto-TDC instead of manual TDC?