Diffrences between WW2 & Modern Era

[Imp]

Not sure where to post this & talking tactical difrences how it effects play, not the obvious listed quickly.
WW2 tanks generaly need to be still & often still require multiple shots to hit, also often need to be reasonably close to damage/kill. On the flip side early infantry AT weapons are not much cop so they can give close support to your infantry. Arty was lethal kill factors have not gone up much & in fact big stuff is quite capable of destroying vehicles, call times though make effective use harder.
Infantry to dont improve much they tend to have a rifle & LMG the same as there modern counterparts except there AT ability gets better. If anything engagement ranges have gone down fractionaly traded for slightly better kill or accuracy but squad size has shrunk.
So the main diffrence is in vehicles, both more frequent if you take that into account & play that way i.e. use trucks or nothing more often. They are faster & you can use the speed as far more accurate. Also theres helicopters to deal with in more modern times but much better AA once radar & SAMs come along.
But the question is how does this effect play is WW2 a more static game, do you find yourself using your units diffrently due to the diffrences etc.
I will kick the ball off by saying I think planning is far more important in WW2, arty takes longer to plot & a lack of vehicles or speed of means reacting to the enemy, changing the plan takes time. While this means pulling off something like a flanking move is harder to do it is also harder to react to so overall I think staying ahead of the situation is more important. Suppose what I am saying is the modern force is more flexible it can react to a situation that crops up faster meaning you can wing it more. One big diffrence is planes in WW2 you can risk using them for recon to get an overview of whats going on, trying this in modern times is not healthy so I rarely buy unless can get 6.