How many grenades to take down a wood wall or metal door?

[Pickles]

how many and where do they have to hit?

[SockMonkeh]

Used to be something like 10 grenades for a metal door and more like 15 for a wooden wall, just chuck them as close as you can get. I believe the new patch reduced the blast radius and decreased damage, so that's probably no longer the case.

[Pickles]

k thanks