Smoke you can hide in
A smoke screen is a destroyer captain's best friend, and it finally looks the part. Where it used to pile up as a heap of round grey puffs — every one of them showing its edge — it now lies on the sea as one low, rolling bank: thick in the middle, fraying at the rim, lit by the sun on its crown and grey in its own shade underneath.
One wall on the water
Lay your smoke and watch it from the enemy's bridge. It sits on the Brick Sea like a fog bank rolled in off the horizon — a long grey wall, soft along its top, tight down to the waterline. Steam a destroyer into it and her bow goes first, then her funnels, then her stern, and there's nothing left to lay a gun on.
The bank hides what's behind it, too. A salvo that goes long into the smoke doesn't throw up a bright white column on the far side for everyone to read — the splash sinks into the grey with everything else. Shoot blind and you'll have to guess.
Inside the smoke
Now sit in it. From your own bridge your bow still stands clear, but a couple of hull lengths out the sea turns grey, the horizon goes, and the sky's clouds go with it. A ship laying smoke alongside you is a shadow; one across the bank is gone. Steam out of the far side and the world comes back a little at a time as you clear the wall.
On the steppe
Tank crews get the same smoke, sized for a hull, and it now stands on the ground where you pop it. On the Brick Steppe's high ground your launchers used to fire a cloud that sank out of sight beneath the hill; now it blooms on the ridge around you, right where the enemy gunner was looking.