Slope Physics in CS2: Which Grenade Lineups Broke in the April Update?

Valve pushed the highly anticipated AnimGraph 2 update out of beta on April 20, 2026, and it has fundamentally changed the feel of Counter-Strike 2. While the community is praising the massive frame rate boosts, the return of readable counter-strafing, and the crisp hit registration, utility players are facing a crisis.

The update quietly refactored slope physics, meaning hundreds of hours of carefully memorized jump-throw lineups might now be completely useless. Here is exactly what changed under the hood and where you need to re-evaluate your utility.

What Actually Changed with Slope Physics?

In the Source 2 engine, how the game calculated your player’s exact height on a sloped surface or staircase used to be slightly inconsistent. Depending on the exact angle you approached a ramp before stopping, your character model’s Z-axis (height) would lock in at a slightly different pixel.

The AnimGraph 2 patch notes address this directly:

“Adjusted ground smoothing at locations where sloped ground surfaces transition to flat ground… Player height on ramps is now consistent and no longer depends on approach direction.”

While this makes walking up stairs look and feel infinitely smoother without the old “teleporting” visual glitches, it fundamentally altered the starting elevation for any jump-throw executed from an incline. If your crosshair placement relied on your model standing on a very specific, buggy part of a ramp, your smoke is now going to land short or bounce harmlessly off a skybox.

The Casualties: Which Lineups Are Broken?

If a lineup requires you to wedge yourself into a corner on completely flat ground (like standard Mirage T-Spawn smokes), you are perfectly fine. But you need to immediately head into a practice server to re-learn any utility thrown from these specific map areas:

• Vertigo (A-Ramp & Scaffolding): Vertigo is the ultimate slope map. Virtually every precise retake flash or jump-throw smoke thrown from the yellow scaffolding or the incline of A-Ramp itself has been slightly altered by the new ground smoothing.
• Mirage (Ticket Booth & Stairs): CTs throwing deep jungle or mid-window smokes from the slight inclines and clipping near Ticket Booth will notice their trajectories are off.
• Ancient (T-Spawn Water & B-Ramp): The transition from the water up to the flat ground in T-Spawn has been smoothed out, altering the starting height for several fast mid-control smokes.

The Silent Ladder Nerf

Utility wasn’t the only thing hit by the movement changes. Valve also quietly removed a massive piece of legacy movement tech: silent fast-climbing.

Previously, if you viewed a ladder at a specific angle and tapped two movement keys intermittently, you could climb at full run speed without making a single sound. The April update classified this as a bug and removed it entirely. Say goodbye to fast, silent flanks on Nuke, you now have to choose between speed and stealth.

How to Adapt

The only way to survive the AnimGraph 2 transition is to hit the server and grind out new lineups. Relying on old YouTube tutorials from 2025 will only get your teammates killed on a site execute.

Don’t wait for your Premier match to find out your vital smokes are broken. Spin up a high-performance CS2 practice environment with East Gate Hosting. Our dedicated game servers provide the unthrottled CPU power and pure enterprise NVMe storage you need to load up maps, spam utility, and calculate new trajectories without a single dropped frame. Manage your practice configs effortlessly through our custom Pterodactyl panel and get your squad back to full tactical readiness.