Heroes VII

What do you mean "no"? Of course, it exists. And it's not some whim, but a great feature. Have you never played multiplayer in "Heroes 7"?

No, my experience with the game was superficial.
And what's so good about different field sizes? Tell me about it. I only see problems with speeds, because different speeds are optimal for each field size. A speed of 3-4 might be fine on a 12x12 map, but too slow on a 16x16 map. Isn't that why the game has such a limited range of speeds?

And by the way, remind me, is the range of a direct arrow as low as in Heroes 6, 5 cells? Does it change with the size of the field?
In Heroes 5, it was 6 (for 10x12 maps) and 8 (for siege maps 14x14).

The thing is, increasing the field size significantly strengthens ranged units and casters (units with ranged abilities), especially if the range of a direct arrow increases.