Inferno Arch Smoke: Cutting Off A Site Rotations

The inferno arch smoke blocks one of the main routes CTs use to reach A site. Arch is the passage on the CT side of A that leads in from CT spawn. Library sits right beside it. Smoke Arch and CT rotators either walk through a smoke or take the long way, which buys Ts time to plant.

This guide explains purpose, timing, counters and the plan after it lands. It does not give a pixel-perfect lineup, because lineups shift with patches. Practise the throw in a private server or with a lineup tool. If you are new to grenades, start with our utility basics guide.

What does the Inferno arch smoke block?

A site is tight, and CTs rotate onto it from several spots. Arch is the widest of those gaps on the CT side. A CT standing in Arch can see most of the site, the Pit side and the path Ts use from Short.

A good arch smoke does three jobs:

• It blinds a CT holding from inside or just behind Arch.
• It slows rotators coming from CT spawn.
• It forces CTs to either fall back or move toward Library, where Ts can expect them.

Where is it thrown from?

Ts usually throw it from the mid side, around Second Mid. One current guide shows it from the same spot as the Library smoke, which makes the pair easy for one player to learn. Both are commonly jump throws, so check that your jump-throw bind works first.

Older guides also use it on a Long take. In that version, Ts walk up Long with the arch smoke up and a Short smoke beside it. That lets them hit an isolated rotator in Library or smoke Library off as well.

Why pair it with a Library smoke?

Arch and Library sit side by side. If you smoke only Arch, a CT can still play Library and see the site. If you smoke only Library, Arch stays open. Throw them together and the CT side of A becomes a wall of smoke.

Many teams add a Moto smoke as well, which blocks the view from the CT corner of the site. Our Inferno A site smokes guide shows how the full set works on an execute.

When should Ts throw it?

Use it during the execute, not before. A standard A hit looks like this:

1. Take control of Apartments and mid so Ts can enter from two sides.
2. Throw Arch, Library and Moto smokes from mid.
3. Burn Pit or the deep corners with molotovs.
4. Flash and enter from Short and Balcony at the same time.

If the smokes bloom before your entries are ready, CTs simply wait for them to fade. Count the throws on comms so the entry moves as the smoke lands.

How do CTs counter it?

• Spam. A CT behind the smoke can fire blind toward the site. Do not stand still in the middle of A.
• HE grenades. In CS2 an HE can blow a smoke open briefly. CTs use that gap to see planters.
• Library flank. If Library is not smoked, the CT will often play there instead.
• Late peeks. CTs wait for the smoke to thin and then peek with a full team.

The best defence against all of these is speed. Plant fast and spread out before the smoke fades.

What should you do after it lands?

• Clear close spots: Pit, Graveyard, Truck and the corners near Moto.
• Plant where at least two teammates can see the bomb.
• Put one player on Arch and Library. Most retakes come through there.
• Keep a molotov or incendiary for the defuse if you can.

Remember that a CT smoke can put out fire in CS2. Our post-plant guide covers how to hold the bomb with crossfires.

Variations

Some teams skip the arch smoke and molotov Arch instead, which forces the CT out rather than just blinding him. Others throw only Arch and Library as a cheap fake before a B hit. Each smoke costs $300, so a fake that pulls a rotator can be worth the money.

Sources and checks

Details were checked on 1 November 2026 against CS2Pulse Inferno smokes, Dignitas's Inferno smoke guide and Metabot's Inferno guide. Lineups can change after map updates, so test them first.

inferno smokes a site execute cs2