If a unit passes its Morale check against Tank Shock any troopers from the unit can stand in the path of the vehicle and shoot at it, rather than move out of the way. This is potentially a rather suicidal thing to do! Each model nominated for this heroic duty gets one shot at the tank as it heads towards him. He hits automatically, resolve the hit against the tank's front armour immediately. Then, unless he has destroyed or stopped it, he gets crushed to death by the tank grinding over him – the model is killed regardless of wounds or armour (invulnerable or not!).
A Crew Stunned result stops the enemy vehicle for the rest of the turn in this case, halting 1" in front of the unit.
Errata — Chapter Approved: Main Rules Clarifications (v2.0): Only models that are actually going to be moved over in a Tank Shock can make a Death or Glory attempt.
Errata — Chapter Approved: Main Rules Clarifications (v2.0): Multiple Death or Glory attacks by a squad are resolved sequentially.
Errata — Chapter Approved: Main Rules Clarifications (v2.0): Death or Glory attempts may only use ranged weaponry. Multi-shot weapons, like autocannon, get only one shot, but since it hits automatically there's nothing to complain about.