The model cannot make Stomp Attacks and, when in the second rank and not in base contact with any enemy models, can make Grind Attacks across models in the first rank directly in front of it. When a model with Irredeemable is killed by a Melee Attack, remove it as a casualty only at the end of Initiative Step 0. A unit with at least one model with Irredeemable may never have more ranks than files.