40 CARROTCheck whether the unit is eligible
Confirm the target is Infantry, Beasts, or Swarms before applying Benefit of Cover.
How does Benefit of Cover work in Warhammer 40K?
Cover is a model-position question before it is a modifier. Check who qualifies, make the whole unit fit, and then resolve the exceptions and sight rules separately.
TL;DR
Benefit of Cover applies when an eligible unit is wholly within a terrain area, giving ranged attackers -1 to hit. Check the target’s keywords and every model’s position first, then resolve Ignores Cover, auto-hitting weapons, and the separate line-of-sight effects of Obscuring, Towering, and Plunging Fire.
Which units get Benefit of Cover, and when?
The benefit keys off what the model is and where it stands, not just line of sight. It applies to Infantry, Beasts, and Swarms and only while the unit is wholly within a terrain area. A squad with one model outside the footprint does not qualify.
That makes cover a spacing problem as much as a positioning one. The same discipline that keeps a unit in coherency keeps it inside the terrain. Vehicles and Monsters do not get this benefit; their usual question is whether terrain blocks line of sight entirely.
Resolve cover in four checks
Check the whole terrain footprint
Confirm every model in the unit is wholly within the terrain area rather than merely behind it.
Resolve the attack exceptions
Apply Ignores Cover and remember that auto-hitting weapons are unaffected because they make no hit roll.
Check the separate sight rules
Resolve Obscuring, Towering, and Plunging Fire independently, using the current mission pack for the exact interaction.
Inspect the terrain footprint and firing lane
40 Carrot badges Obscuring, Towering, and Plunging Fire on the table as OBS, TWR, and PF. Use the overlay view to check the terrain area and sight line, then verify the exact rule in the current mission pack.
Use a repeatable terrain check
Run the same short check before assuming a unit has cover.
Cover check
- Target
- Confirm the target has an eligible keyword.
- Footprint
- Check that every model is wholly within the terrain area.
- Attacker
- Check Ignores Cover and whether the weapon auto-hits.
- Sight
- Resolve Obscuring, Towering, and Plunging Fire separately.
What are Obscuring, Towering, and Plunging Fire?
Obscuring terrain blocks line of sight drawn through it. Towering is the exception for very tall models: they can see, and be seen, over obscuring terrain. Plunging Fire applies on tall terrain when shooting down at nearby ground targets. Check the current mission pack for the exact effect.
To practice, set up the exact position, move the squad until it is wholly within, then run the trade both ways. The Damage Calculator shows what the -1 to hit changes for the entered weapon profile, and includes a matching Plunging Fire toggle.
Practice the terrain check on the real footprint
Open a Virtual Tabletop →The core Virtual Tabletop, terrain, overlays, measurement, and Damage Calculator are free.
Frequently asked questions
What does Benefit of Cover do in Warhammer 40K 11th Edition?
Ranged attackers take -1 to hit against Infantry, Beasts, and Swarms that are wholly within a terrain area. The Ignores Cover ability cancels it, and auto-hitting weapons are unaffected.
Does Benefit of Cover work against auto-hitting weapons?
No. Weapons that hit automatically are unaffected by the -1 to hit from cover, and attackers with Ignores Cover cancel the benefit as well.
What is Obscuring terrain?
Obscuring terrain blocks line of sight drawn through it: units on opposite sides can't see each other. Towering models are the exception: very tall models can see and be seen over obscuring terrain.
What is Plunging Fire?
Plunging Fire applies on tall terrain: units shooting down from a high position at nearby ground targets. The exact effect depends on your mission pack, so check it before the game.