Shipyards, starbases, etc while the mobile forces cause more chaos in the enemies' rear for a successful maneuver war campaign you need both fast agile units and heavy-duty more powerful units to crush the pockets that you create as you advance. A ship like the Proxima is there to take out the isolated pockets i.e.
This is why It was the Infantry and Artillery that would actually then take out these pockets and thus prevent them from attacking the flanks of the mobile forces in North Africa Rommel's lack of Infantry and Artillery was much more telling than his issues with tank numbers. Let's look at the German assault on France while the fast elements rampaged across the country causing chaos they took care to deliberately bypass any strong points this is potentially very risky and the best defense against this style of warfare is to have a series of mutually supporting strong points and then cut off and isolate the mobile forces by smashing them in the flank as they bypass you (See the Admin Boxes the Commonwealth used in Burma as well as the series of strongpoints the Commonwealth forces used to break up and defeat Rommel at places like Al Halfa. I disagree with your statement about battleships like the Proxima Class not being useful in 'maneuver warfare' In many ways, it shows that you only have a surface-level understanding of maneuver warfare.
