These weapons can punch through even the thickest armour with ease.
In Epic 40,000, this super-heavy weapon is called Anti-Tank. That term tends to mislead players as it implies effectiveness against Vehicle units but perhaps not against other unit types such as Infantry — whereas the rules below actually make this weapon very effective against all unit types. We borrow the new name from the similar concept in Epic Armageddon.
When you make one or more Macro-weapon shots:
Specify whether you will target Infantry units or Vehicle units in the target detachment.
For each shot, roll a D6. Each 4+ that you roll is a hit, regardless of armour or cover.
Allocate the hits as you would for regular Firepower, but only among units of the type that you specified.
The Space Marine Land Raider is both heavily armoured and heavily armed. It has armour-busting lascannons, which make short work of thick armour.