[Imp]

To cover some points, rough slopes are normally dotted about and can be missed so warning is helpful.
Things like streams and snowdrifts are long and therefore you look at how they are laid out and plan accordingly. You said you like looking at the tactical side well that’s crucially important if you have vehicles
Streams snowdrifts mud and swamps play an important part in your tactics for the map so help is not needed you take them into account rarely. Rough slopes you plan if there’s a line of them but more often than not they can be driven round.

Planes have not changed to my knowledge they have always been an oddball regarding weapon stats read the guide on plane armament. Helicopter armament works the same as all other units