Dust 2 b site smokes are some of the first lineups new players learn. B is a closed site with one main T entrance, so two smokes do most of the work. This guide explains what those smokes block, when to add more, and how CTs fight back. It does not give exact lineups. Practise those in a private server with a lineup tool or video.
If you want every smoke on the map, see our Dust 2 smokes overview. This page covers B executes only.
How is B site laid out?
Ts reach B through Upper Tunnels. The tunnel exit opens straight onto the site. CTs defend from spots such as Car, Closet, Plat and Back Plat. Help arrives from CT mid through B Doors, and from B Window, which overlooks the site.
That means two lines matter most for an attack: Window and Doors. Close both and the players on site are cut off from help. Our Dust 2 B site guide covers each position.
What are the core dust 2 b site smokes?
- B Window smoke. This blocks the window overlooking the site. CTs there can see the whole tunnel exit, so this smoke is the most important one. See the B Window guide for why the spot is so strong.
- B Doors smoke. This blocks the double doors from CT mid. It stops rotating CTs from seeing your entry and planting players.
Both are usually thrown from Upper Tunnels before the push. Once they bloom, flash over the tunnel exit and enter together. Clear close corners as you go.
When should you add a third smoke?
Two smokes are enough against a single anchor. Against a stacked B, a third smoke can help. Teams sometimes smoke deeper on site to stop a player at the back from watching the tunnel exit. Use it when you know a CT holds from deep, not every round.
Remember that more smokes also hide CTs. A player can sit inside or behind a smoke and catch you clearing. Keep crosshairs on smoke edges as you walk in.
The mid-to-B split
A pure Tunnels hit is predictable. CTs know exactly where you come from. A split adds players from mid through Lower Tunnels. They reach CT mid and can push through B Doors from behind.
In a split, the Doors smoke is less useful, because your own players come that way. Use the Window smoke, flash from Tunnels, and let the mid group catch rotating CTs. The mid to B guide explains this route.
How do CTs stop a B rush?
CTs have a simple answer. A smoke on the Tunnels exit blocks the only entrance. Ts must then push through blind or wait. Add an incendiary at the same spot and a rush stalls completely.
Do not throw it on the first footstep, though. Ts often fake B with noise. If you smoke too early, they go A while your utility burns. Call the hit, then smoke.
After the plant
Common B plants are at Default and behind Car. Ts then hold from Close, Big Box, Back Plat and Upper Tunnels. Save a smoke for the retake if you can. A late smoke on Window or Doors splits the CT retake. The bomb timer is 40 seconds, so delays add up quickly. For the defending side, see our Dust 2 B retake guide.
B smokes on a budget
A smoke costs $300, so a full B execute with two smokes and two flashes costs $1,000 in utility. On a force buy, that is a lot. If money is short, buy only the Window smoke and one flash. That removes the strongest angle for $500. Pair it with a fast entry and good trades. On a full buy, add the Doors smoke and a molotov for close corners.
Watch for smoke interactions
CS2 smokes fill the space around them. Bullets cut short-lived holes, and an HE can push smoke away briefly. A CT in Window can shoot a hole and see through your smoke. Do not stand still in the open behind it. Learn the general rules in our CS2 smoke grenade guide.
Sources and checks
Callouts, key smokes and plant spots were checked on 1 November 2026 against CSDB Dust 2 callouts and utility notes, CSDB Dust 2 lineups and Dexerto on CS2 smoke changes.
Frequently asked questions
Which smoke matters most for a Dust 2 B hit?
B Window. A CT there sees the whole Tunnels exit. Smoking it removes the strongest angle on the site.
Should I always smoke B Doors?
Usually, but not in a mid-to-B split. If your own players come through Doors, the smoke only slows them down.
How can a CT stop a B rush on Dust 2?
Smoke the Tunnels exit and add an incendiary. Ts then have to push blind or wait, which buys time for rotations.
