I realize most people on the forum are past this point in the game, pardon me for the interruption.
I have the top row of HR5 map to complete (region 12 rare hunts). I just killed the Rhino with a heart shot (Rare Hunt) which posted a map piece as the reward and said I won it after the successful kill, but I DID NOT get another piece of the HR5 map.
Killed "Attila", which gave me the top middle piece of the HR5 map.
Killed "Goliath", which also DID NOT credit me with a HR5 map piece.
Killed "Raja", which gave me the top right piece of the HR5 map.
Killed "Hebo", which gave me the top left piece of the HR5 map.
So in conclusion: The Rhino and Elephant heart shot rare hunts DID NOT reward a map piece as they said they would and said they did (but actually did not).
GLU ADMIN: I should have posted this to the FAQ part of the forum, so if you want to move it for me, that would be great. Also, feel free to remove it once resolved. Thank you.
iPhone 4, usually.