The Juggernaut may never march. When charging, the Juggernaut can only do so in a straight line forward, with no wheeling allowed, and it does not use Swiftstride. Juggernauts cannot overrun or pursue in combat if they destroy or rout their foes.
The crew of the Juggernaut do not suffer penalties for moving and shooting. The Bull Centaur may only fight if the Juggernaut is engaged to its flank or rear. All enemy attacks are directed against the Juggernaut itself, and automatically hit in close combat.