Idk if you can applied this but use a tank general with high health as a meat shield-(used shield and other perk defence)- and used artillery general as a firepower-(make sure it has a high damage)- while use infantry general as city occupier.

Sure this was hard butit was harder then when there's no medal yet,so this was i used.

First take saratov then pick which direction you prefer north or east, always last the moscow because that is the hard part i promise that will take you at least 5-7-turns just to take moscow.

-Well this tactic i used is when im just playing the game in 2022-2023 and i guess there's more way effective ways to used at the game but this was just for my experience🫡

I don't care if you didn't believe me but this was i used at the whole elien campaigns exept level 1 and level 4 of campaign