Question about landing craft armo(u)r

[Imp]

On landing craft & just from memory I thought most had armour 4 not 2 & I think it works fairly well.
If it gets hit by something decent it sinks but have often had several damage results & still landed or decided to postpone or try elsewhere.
Sure they sink a bit quick but if its cargo is a soft target & its just been penetrated that's a confined space any survivors would probably not be battle capable after witnessing the carnage so in game terms its game over unit destroyed. Certainly if its hit by indirect fire I would not like to see the carnage resulting from HE going off in an enclosed space.