m_gravity

class ProjectileEntityData
        : public GamePhysicsEntityData                // 0x00
    {
    public:
        PAD(0xC);                                    // 0x64
        INT m_hitReactionWeaponType;                // 0x70
        FLOAT m_initialSpeed;                        // 0x74
        FLOAT m_timeToLive;                            // 0x78
        FLOAT m_initMeshHideTime;                    // 0x7C
        FLOAT m_visualConvergeDistance;                // 0x80
        FLOAT m_unknown;                            // 0x84
        MaterialContainerPair* m_materialPair;        // 0x88
        DataContainer* m_explosion;                    // 0x8C
        WeaponSuppressionData* m_suppressionData;    // 0x90
        String m_ammunitionType;                    // 0x94
        CHAR m_serverProjectileDisabled;            // 0x98
        CHAR m_detonateOnTimeout;                    // 0x99
        PAD(0x32);                                    // 0x9A
        FLOAT m_gravity;
    }; // 0x9C

float m_grav = pWepFire->m_data->m_primaryFire->m_shot.m_projectileData->m_gravity;
m_grav = m_grav * -1.f;