Walkthrough tips, Discussion of Campaigns [Heroes 5]

I wonder, is there any special feature in the fifth installment, during a prolonged battle, similar to Armageddon in the third game? --------------- White Death: Another question: is there any way to transfer reinforcements from a city to a hero without the hero visiting the city (and without using "transporters")? Build a guild of mages in the city, and in the hero's spellbook, when he visits that city, a "Summon Creatures" spell will appear. However, the hero will only be able to summon troops from the nearest castle.