That's only true until late in the ACW. By the end of the war, the armies began making increased use of defensible terrain features, dug entrenchments, and built other field fortifications where they could. It was painfully obvious that standing out in the open was suicidal, and Napoleonic era tactics had already gone out the window for the most part, except where armies on the move encountered the enemy and engaged without time to prepare in advance. The shift from linear warfare to trench warfare, with maneuvers to outflank the enemy positions, was rather apparent.
The difference between that and WWI trench warfare was that in Europe, with a much deeper manpower pool to draw upon, the manned trenches extended across the entire border, so outflanking became far more difficult.
I just replied to the post of "Grand Historian" who wrote, that trenchwarfare exists in Vicy just in the endgame, which is just not true and also hostorical inaccurate.
However, the digging in ability starts much earlier ingame and thats also realistic.
And aye, I havent looked up the whole american civil war tactics, just looked up for the exact dates of trenchwarfare on wiki. Theres written, that in America Napoleonic Tactics were used endure the 19th century. So I trust and believe you, when u say that in the endgame of the civil war that changed.
In europe many wars didt end up in trenchwarfare just because overwhelming victories of one party, like the Prussians+Germans over the french armies in the Franco Prussian war. The Prussian mobilized much faster and were able to encircle lots of smaller french armies so there was no chance for a big dig in to trenchwarfare.
Also the Italian-ottoman war and the American-Spanish war were very unbalanced so the Italians an the Americans reached fast vitories over the inferior enemies.
Trenchwarfar always showed up when 2 nearly even huge armies werent able to outflank and encircle each other.
However, I still think for the endgame a combatsystem like in HoI4 would bring fresh wind into a Vicy3.
I still cant imagine that people like to handle 10+ armies on 5 continents at same time and enyoing it. Especially fighting in Africa after 1875 is annoying as the AI always attacks your weakest armies or runs away of u strongest while u pay full attention on europe. And u still have to keep an eye in Africa for the terrain(desserts+mountains and jungle).
And Autofunktion like in HoI4, to give an army the command to hold the line in that area and make the offense and defense decisions on their own, so that u can focus on the mainbattlefield is in my eye still a more than welcome option.
Also to see and hear a bit more than just 2 men standing shooting without sounds and ur clicks.
I like the sounds of HOI4, to see heavy artillery regiments firing, planes flying, tanks breaking through a.s.o..
In a WW1 scenario with Zeppelins, WW1 planes, heavy and light artillery units, flamethrowerunits, Infantry, Tanks scouting balloons, cavallry and machine gun units it could be amazing.
Also more realsitic, as small arms and machine guns are really 2 complete different types of weapons. To separate machine guns with their own producionline like with planes and tanks would also be more realistic, instead of just giving an statsupgrade for all units.
I mean imagine conquerinng a country and the units fire on the ground while the red baron and his flying circus fly above them...or Zeppelins over London...^^
It would be some completely fresh and new for vicy, and who prefers vicy2 can still play vicy2.