So a union miner activates, and moves to a piece of terrain selected for sabotage.. he interacts with the piece of terrain, then uses a 0 action to to file false claim. and bury him self.. after all models have activated, hes placed back on the board.. but not in contact with the piece of terrain.. does sabotage still go off.. the book says they just need to be in play at the end of the turn. this seems like a pretty broke combo considering its hard to stop this with a crew full of m&su models.