[Konstantinos]

You cannot check if x is equal to y with commas ",".

pawn Код:

// It means, if( vehicleid == GS1 OR vehicleid == GS2 and so on.. )
if(vehicleid == GS1 || vehicleid == GS2 || vehicleid == GS3 || vehicleid == GS4 || vehicleid == GS5 || vehicleid == GS6 || vehicleid == GS7 || vehicleid == GS )
{
    // code
}