In Rust IL2CPP, weapon recoil uses Unity AnimationCurve keys inside RecoilProperties:

• pitchCurve: Keyframe array of vertical angles over shot index.
• yawCurve: Keyframe array of horizontal angles.
• timeToTake: Interpolation duration per shot.

To compute exact anti-recoil compensation in C++:

float EvaluateCurve(AnimationCurve* pCurve, float time) {
    for (int i = 0; i < pCurve->m_nKeys - 1; i++) {
        if (time >= pCurve->keys[i].time && time <= pCurve->keys[i+1].time) {
            float t = (time - pCurve->keys[i].time) / (pCurve->keys[i+1].time - pCurve->keys[i].time);
            return Lerp(pCurve->keys[i].value, pCurve->keys[i+1].value, t);
        }
    }
    return 0.0f;
}

Evaluating the exact Unity AnimationCurve keys matches the server recoil model identically. Great analysis.

Eliminates all recoil on AK-47 30-round spray sprays.