Deep underground there are icy cavernous underground highways fortified by the dwarves in times long past. Today, on one of these iceways, your army finds itself face to face with a daunting opposing force.
Forgot to mention here that this is Normal Snow/Normal Ice. Also, [URL="http://www.heroscapers.com/community/showpost.php?p=1042676&postcount=11"]here[/URL] is the post where I discuss the map a bit.