Jump Infantry
(Rule)Description: Jump infantry can move up to 12" in the Movement phase instead of the normal 6" move. Thus is optional and they can choose to move as normal infantry if they wish. When using jump packs, movement is not reduced for difficult terrain, and jump pack equipped models can move over other models or obstacles freely. However, if they end their move in difficult terrain, they must take a Dangerous Terrain test.
Jump infantry assault 6" like normal infantry. This move is slowed by difficult terrain in the same way as other infantry.
Jump infantry fall back 3D6", as they will always use their packs. They may, of course, move over any obstructions when falling back, but if they end their move in difficult terrain they must still take a Dangerous Terrain test.