SHADOWX945ELITE

Same here, I did From Hell's Heart 5 times!!! No achievement!!!

Grunts. The little guys. Alien cannon fodder. The things you love to kill. Some find them cute. But, there is a time in every Halo fans life when he/she thinks: What if I could play as a Grunt? Imagine it, you're a Grunt in a new playlist: Grunt slayer. You have Spartan shields. You move as fast as a Spartan and hitting the crouch button makes you more accurate, you move slower and you disappear from the motion tracker. You can use any weapon, you have armour abilities like armour lock and armour effects like Birthday Party and you melee with the strength of an Elite. You can also pilot vehicles, jump and do anything else Spartans and Elites can. Like with Elites you unlock different armour classes from minor to ultra. I want it!