3DMG / ODM Gear

The Three-Dimensional Maneuvering Gear, (3DMG) also known as the Omni-Directional Mobility Gear, (ODM Gear) is what the people in the Attack on Titan franchise use to "fly" by using grappling hooks and compressed gas to propel the user through the air.
It can be used on 8th Axis in many different ways, though the primary way is obviously killing Titans.
To acquire a set of 3DMG, type either the command /kit 3DMG or /kit Liberator into chat. They are primarily the same, except the Liberator kit comes with a full set of iron armor, steak, and a book about the server. 
3DMG consists of three items. One is the Kenn, which is the sword kept in the on/active hand and used to kill titans. When the Kenn breaks, you can go to /warp HQ and buy another blade. A Kenn is made by crafting the blade over the hilt like a torch.
Two is the Gas Tank, which you will need to move around. When you run out of gas, you can go to /warp HQ and refill your Gas Tank by holding it in your active hand and right-clicking one of the signs on the gas tanks at either end of the room.
Three is the off-hand Kenn. Equipping the kit should automatically place the off-hand kenn in your off-hand slot, but if it does not, you can place it in the slot manually. The off-hand kenn is the sword that says "Hold in LEFT hand to use 3DMG".
Once your 3DMG is equipped and ready, you can use it by holding down left-click and looking in the direction you want to go. Grapples are unhooked by double jumping. The grapples take roughly one to two seconds to shoot out, although this can take longer when the server is heavily lagging.