The term "rolling to wound" is a general term used in the 6th edition game rules applied to both vehicles and non vehicles(the term was also used in 5th edition ruleset as well), non-vehicles roll to wound on the wound table, vehicles roll for Armor Penetration to wound, reference sections detailing the steps you resolve things illustrate this in back of the rulebook. Ignores Cover, as it implies ignores all forms of cover saves vehicular and non vehicular.