Inferno's Underpass Isn't a 'Second Floor': Three Utility Lines from Banana to Site and How to Break Space into Settled Cells

Introduction: Many people understand an A-site execute on Inferno as 'smoke underpass, molly balcony, then enter site.' But anyone who has actually played scrims knows the problem isn't whether you have enough utility—it's whether the three utility lines align on the same timeline: when banana control ends, when underpass is cleared, and when site crossfires are broken. If these three problems aren't solved in the same second, the A execute becomes an illusion of 'all utility used, all players dead.'

1. Treat Underpass as 'Cells,' Not a 'Room'

The easiest mistake with underpass is that it looks like a room. In reality, in the spatial structure of A site, it's more like a covered cell: from below balcony to the left side of site, from behind short box to coffin position, each segment has a different viewing angle. The smoke you throw to block the underpass exit only solves the problem of 'people coming out from here,' not 'people looking at site from here.'

My approach is to break underpass into three cells:

• Cell A: Below balcony—main threat is the rifle position holding the left side of site; highest utility priority;
• Cell B: Behind short box—threat comes from the second crossfire line; usually needs a molotov to force position;
• Cell C: Coffin extension—threat is an info point in clutches; doesn't need early clearing, but needs a flash to suppress before entering site.

The order to settle these three cells should be B → A → C, not the common A → B. The reason is direct: Cell B's line of fire covers your first step onto site. If you deal with A first, the first person entering site will take B's crossfire without any warning. This order is especially obvious in default rounds—you smoke A, but die to B.

2. Banana Utility Line: Not 'Blocking,' but 'Timing'

Banana utility is often treated as a blocking tool: a smoke to block CT's retake, a molotov to force back a push. But from the perspective of an A execute, the real value of banana utility is to set a timer for clearing underpass.

Specifically: the first smoke you throw on banana not only blocks CT's retake from B, but also tells your teammates 'within the next X seconds, underpass must be cleared.' If the molotov burns out and the smoke fades, and underpass isn't clear yet, then this execute has lost its time window—CT's retake positions will re-establish, and your site execute becomes a hard push into crossfire.

So I divide the banana utility line into two segments:

1. Front segment (controlling banana): molotov to force back pushes, smoke to block CT's first retake sightline. The goal here isn't kills, but to get confirmation that 'banana is temporarily safe.'
2. Back segment (timer for A): second smoke lands near underpass exit, while a flash suppresses Cell B. The goal here is to compress underpass clearing into 4 to 5 seconds; beyond that, the execute rhythm collapses.

There can be no hesitation between these two segments. The most common mistake in practice is that after controlling banana in the front segment, the team stays in banana for an extra two or three seconds—these seconds look like 'waiting for teammates,' but actually burn the back segment's timer early.

3. Site Utility Line Must Align with the 'First Step onto Site'

Finally, site. After underpass is cleared, the first step onto site determines the success of the entire execute. The utility line here isn't about quantity, but alignment with the first step's landing spot.

My approach: one smoke on the right side of site, one flash to suppress coffin, and a molotov saved for short box reinforcement. These three utility landings aren't random; they correspond to the vision needs of the first, second, and third players entering site. The first player needs the right-side smoke for cover, the second needs the coffin flash for suppression, and the third needs the short box molotov to force position. If the utility order is wrong, the first player entering site will be exposed to two lines of fire.

More critically, this utility line must connect with the banana timer. As soon as the back-segment smoke on banana fades, site utility must land immediately—no pause in between. This connection point is the real 'technical skill' of an Inferno A execute—not how hard the utility is to throw, but whether the three utility lines' timelines mesh.

Conclusion

Inferno's A site is never about 'enough utility,' but about 'aligned utility lines.' Break underpass into cells, treat banana utility as a timer, and align site utility with the first step's landing spot—do these three things well, and the A execute transforms from 'a gamble' into 'a settled push.' Next time you play Inferno, ask yourself: are my three utility lines settling in the same second?