[Root_]

AFAIK l4d/2 and dods are using m_iPlayerClass netprop.
However tf2 are using m_iDesiredPlayerClass, which will work for either dods and l4d/2, so you can try adding this instead.
Here are some DoD:S class enum

enum
{
    PlayerClass_Random = -2,
    PlayerClass_None,
    PlayerClass_Rifleman,
    PlayerClass_Assault,
    PlayerClass_Support,
    PlayerClass_Sniper,
    PlayerClass_Machinegunner,
    PlayerClass_Rocket,
    
    PlayerClass_Size
}