Halocraft v0.6.3 by KILLER CHIEF
Halocraft v0.6.3 for Minecraft 1.6.4. [Now Completely Multiplayer Compatible!] This mod adds the Halo Guns/Grenades (some of them), the Mongoose, Mobs, another Dimension, and many Items and Blocks. Read the ReadMe for Microsoft's Game Content Usage Rules.
Adds Scrolls to you to your game that give you different abilities. There are 4 categories, Utility(Green), Offensive(Red), Defensive(Blue), Special(Purple).