The medals are there but they are tough. It is all a numbers game the more attacks you make the better your chances. Attacking a lvl 1 swamp I got rose medals. However, it is about 100 attacks for one rose. I can attack the lvl 1 swamp next to me about 100 times in one hour. With 8 heros and about 30 seconds between each attack. I attack with 500 archers an no losses