Ruined City Outskirts
Recommend that you put the slider in favour of raven 2:3 and set length to "Long" or "Epic".
Vaguely inspired by the RO2 map "Bridges over Druzhrina", this map has Raven attacking a trench line just outside a ruined city. They will have to defeat the initial line of eagle defenses, cross a river, and finally assault the city itself to secure victory.