Matalarata
Arcane
Just took a level 7 army using a level 3 one (100 scouts 10 marksmen 10 rangers) in crusade mode. An advice, as soon as you start chapter 3, swap your levelled up General and give him/her a lousy army while leaving the less experienced one with the most powerful one. This way the troops will help him gather xp while the other one can easily mop up with just a couple spells per battle + a heal.
You can use small 1 troop armies to quickly scout the map.
You can use small 1 troop armies to quickly scout the map.