B Stairs Pop Flash from T Mid

Steps

1. From T Mid, walk toward the B Stairs entrance and stop about 3 meters before the doorway. Stand at the left side of the corridor, pressing your left shoulder against the wall.
2. Look toward the B Stairs entrance at roughly head height. Find the upper-left corner of the doorframe that leads into the staircase area.
3. Place your crosshair on the corner of the doorframe - right where the vertical and horizontal edges of the frame meet.
4. Start running forward toward the doorway and perform a right-click throw (underhand) as you approach. Release the flash about 2 steps before reaching the doorframe.
5. The flash bounces off the doorframe edge and pops almost instantly inside the B Stairs area, blinding any CT holding the staircase or the B site entrance below. The underhand throw gives defenders virtually zero reaction time.

Tips

• Pop flashes are the most effective entry tool in CS2 because the underhand throw makes the flash pop so quickly that defenders cannot turn away in time. This one is designed to be thrown on the move.
• The right-click underhand throw is essential. A left-click overhand throw would send the flash past the staircase, giving CTs time to turn away before it pops.
• Your entry fragger should be right behind you, ready to descend the stairs the instant the flash pops. Call “flashing, go” to synchronize the push.
• If the flash pops too late (after you have already entered the staircase), you are throwing too late in your run. Release the right click 1 step earlier.
• Practice this lineup offline with sv_cheats 1; sv_infinite_ammo 1; sv_grenade_trajectory 1; sv_grenade_trajectory_time 10; mp_roundtime_defuse 60 to master the timing.
• On Vertigo, the stairs create a natural funnel where CTs hold tight angles. A well-timed pop flash is often the difference between winning and losing the B Stairs entry fight.

When to Use

This pop flash is a key T-side entry tool for B site on Vertigo. Use it for:

• B Stairs entries where your team is pushing through the staircase and needs the defender blinded before the first gunfight
• Fast B executes where your team rushes down B Stairs and needs an instant flash to overwhelm the site defense
• Mid-to-B splits where your team pushes from mid toward B Stairs and needs the flash to clear the transition
• B picks in default rounds where you flash B Stairs and peek for a quick kill on the defending CT
• Force-buy B rushes where the pop flash is critical to winning the initial engagement against better-equipped CTs