CRUSHING BLOWS Bounty – Destiny: Rise of Iron (Farming Battle Axe Kills)
The fastest way to complete the “Crushing Blows” bounty is to start the “The Iron Tomb” mission on earth and run it all the way to the end where you get the battle axe.
This is a perfect spot for the bounty because you have unlimited ammo for the weapon at the fire spots.
Damage the first boss to spawn the first wave of little enemies. After that, kill him to spawn the next two enemies including the second wave of small enemies that are important for you. After you took them all out, go down and you respawn right at the first boss.
After you repeat this about 5 times you can easily complete the “Crushing Blows” bounty.