The Rat Ogre is a huge rat that spawns and acts like a tank from Left 4 Dead. This achievement means you have to just do damage to him and have you or your team kill it. In the bottom left of your screen it will say whoever kills it:
[insert gamertag] killed Rat Ogre.
Some tips to kill the rat ogre are:
1) Use projectiles
2) Dodge backwards with
+
if he is chasing you and he will rarely hit you
3) After a good amount of damage has been done use a bomb if you have one
4) Melee him in the back if he is focused on another enemy
If you get the last hit on him you will earn this:
If you leave a negative vote please leave a comment why.
Happy Hunting