Just a quick question;

When behind cover, do you:

1) use the cover's AP instead of your armour's AP if it's better?

or 2) first work out the attack against the cover's AP, and any excess is applied to the target, reduced by his armour's AP and TB?

coves said:

2)

Alex

Don't you just add the cover's AP to yourself? Easy enough, hm.

You do add them, but I can see why this question came up. Normally, you can't stack armour (like in dark heresy "I got a flak greatcoat on top of my guard flak, on top of my mesh armour, so all that AP adds up to be as awesome as power armour"), or from tabletop, where a model has to choose to take a cover save or an armour save (not both).

BrotharTearer said:

Not quite - Apply cover first, with the effects of Pen applied to the cover's AP. Anything left, apply to the target, subtracting Pen from the target's own armour.

Adding the cover's AP directly to the target makes cover more effective by comparison, and while that might be desirable for some games, it's worth bearing in mind before you make the change.