Being a raiding force does not preclude the RM being involved in fact the opposite it’s what required along the Norwegian coast using hovercraft and raiding craft.https://www.marinecorpstimes.com/news/y
The linked article's sources (as listed in it) were quickly followed with the RUSI publication, which shared many of the same premises, like this one:
"traditionally, naval leaders think of how Marines influence the land component of a sea battle, not the sea. But if they can have effects on sea access and deny enemies movement, then he, as a naval commander can think differently about how to employ his ships."
... a case in point with the country (that is wholly within Europe, and) that holds the longest shoreline, when you count it all; namely Norway
- while their SF (Jaeger) force is being concentrated up North and is in the process of getting their own dedicated helicopter force, it is the Coastal Jaegers that will operate, as needed, along the whole length of the coast. There could be a lot to be learned from how they operate, incl. moving ship-killing missiles to key choke points very quickly on fast boats. A preparatory recce for a landing cannot detect unprepared positions for the simple reason that they do not exist yet, at the time.
- all this kind of "stuff" could be counted as defensive flanks ops (to somehow fall under the generic raiding header), while noting that the Russian marines train for the exact opposite:offensive ops on the flanks of the main force. Fight fire with fire, and old saying that I think, has lately been practised also in the more concrete sense.