Cache flashes matter more than ever on the CS2 rebuild. The map has tight entrances on both sites, and most defenders sit close to them. A good flash wins the first duel. A bad one blinds your own team. This guide explains where to flash on each part of Cache and how to turn those throws into reliable pop flashes.
We focus on purpose and placement, not pixel lineups. Exact throws for the 2026 version are still being worked out by the community. For general technique, read our CS2 flashbang guide and the pop flash guide.
What makes a good flash on Cache?
A flash should go off in the air, out of the defender's view until the last moment. If the enemy sees it coming, they turn away. Most good flashes on Cache bounce off a wall or ceiling, or are thrown over a doorway so they pop just past it.
Timing matters as much as placement. The entry player should swing as the flash pops. Call it out loud: "flashing Squeaky, go on pop". Two flashes from different directions are much harder to dodge than one.
Where should Ts flash on A?
Ts usually hit A from A Main and Squeaky, the blue-door room. That gives two flash angles.
- A Main: flash over the entrance so it pops above Forklift and the Default Box area. This blinds the players holding Main from site.
- Squeaky: a flash from inside Squeaky, popping just outside the door, catches players watching the door from Quad or Corner.
- Both at once: timed together, they force defenders to turn one way or the other.
Smoke Quad and Highway first, then flash. A flash thrown at the same time as a smoke often pops before the smoke blooms. Our Cache A site smokes guide shows which smokes go first.
Where should Ts flash on B?
B is raised and tight, and many defenders hold close angles.
- Sun Room windows: flashes through the windows of Sun Room are a standard part of a B execute. Teams pair them with Sun Room smokes on Heaven and Tree.
- B Main: a flash over the B Main entrance helps the first player onto the site. Watch out for Headshot, which sits low.
- Vents and Checkers: on a split, a flash into Checkers helps players coming through Vents.
Read our Cache Sun Room guide for the room itself.
Where should players flash in mid?
Mid fights are often long-range duels with an AWP. A flash over mid can let a teammate cross or peek a Connector player. Use it with a smoke, not instead of one. A flash alone gives the AWPer only a short blind window.
How do CTs use cache flashes?
CTs should keep flashes for three jobs:
- Re-peeks: flash for yourself and swing again after hearing Ts enter.
- Support: flash for a teammate holding Checkers, so they can win the first duel.
- Retakes: save flashes for the retake. Two players flashing for each other from different angles is the strongest opener.
| Area | Side | Purpose |
|---|---|---|
| A Main | T | Blind Forklift and Default Box holders |
| Squeaky door | T | Blind Quad and Corner |
| Sun Room windows | T | Support a B execute with smokes |
| Checkers | CT | Support a teammate in Checkers |
| Site on retake | CT | Win the first peek |
How do you build reliable pop flashes?
Open a private server and stand where you would throw from. Try a flash off a wall or high over a door. Then move to the defender's spot and check whether you see it before it pops. Repeat until the flash is invisible until it explodes. Our lineup practice guide covers the setup.
Map updates can change walls and props. If a flash stops working, check a current lineup video before using it again.
Sources and checks
Flash uses and the callouts named here were checked on 1 November 2026 against Profilerr's Cache utility guide and the rebuild notes summarised by White.market. Few verified flash lineups exist yet for the 2026 Cache, so this guide explains where and why to flash rather than giving exact throws. Learn lineups with a lineup tool or video in a private server.
Frequently asked questions
What are the best cache flashes for a B execute?
Flashes through the Sun Room windows, paired with Sun Room smokes on Heaven and Tree.
Should I flash before or after smoking?
Smoke first. Flash once the smoke has bloomed and your entry player is ready to swing.
Are these exact flash lineups?
No. This guide explains where and why to flash. Build exact pop flashes in a private server or with a current lineup tool.
