Casual Gameplay

I play Call of War with my 2 friends sometimes but I don't know what strategy to give them. I am chronically online so I know my own gameplay style but they are more casual and less active. Normally they would play until they figure it out but they tell me if we don't win then they're gonna stop playing. They know the basics of producing, researching, and other "advanced" details such as attacking/defending damage, morale/resource production. Any tips for them would be appreciated.