Fanatics that have already burst from their Concealing Units move in the compulsory moves part of their Movement phase. Move Fanatics before doing other compulsory movement (such as fleeing units) as this will save complication later. Taking each Fanatic one at a time, roll a Scatter dice to determine which direction he moves in. The Goblin is now so completely dizzy he could go anywhere. Move the Fanatic 2D6" in the direction shown by the arrow of the Scatter dice.
If you roll a double on the 2D6 roll then the Fanatic is not moved but meets with an accident, choking himself on his chain, or collapsing into an exhausted heap. In any case, a double indicates the Fanatic has met his end and the model is removed from the table instead of moving. Note that this only happens during further movement of Fanatics - not when a Fanatic first emerges from his unit.
Move the Fanatic into and through any units it hits as already described and calculate damage on each unit touched. With any luck that good, hard push will have put the Fanatic firmly amongst the enemy and as far from his mates as possible... but you can never be sure.