To read bone positions (Head, Neck, Pelvis, Hands, Feet) in CS2:

1. Read pPawn + m_pGameSceneNode.
2. Read m_pGameSceneNode + m_modelState + 0x80 to get the BoneArray pointer.
3. Each bone is a RenderBone structure containing a 3D position vector:

struct RenderBone {
    Vector3 position;
    float scale;
    Quaternion rotation;
};

Vector3 GetBonePosition(uintptr_t pPawn, int boneIndex) {
    uintptr_t sceneNode = Read<uintptr_t>(pPawn + m_pGameSceneNode);
    uintptr_t boneArray = Read<uintptr_t>(sceneNode + m_modelState + 0x80);
    return Read<Vector3>(boneArray + (boneIndex * 32)); // 32 bytes per bone struct
}

Head bone index is 6 in Source 2.

Bone index 6 is Head, 4 is Neck, 0 is Pelvis, 8/13 are Left/Right Hands, 22/25 are Left/Right Feet. Makes full skeleton ESP super straightforward.

Confirmed. Notice bone array elements are 32-byte aligned in Source 2 compared to the old 3x4 matrix in CS:GO.