[Misiur]

Your vType is probably inside enum declaring strong tag (starting with big letter). Like:

pawn Код:

enum VehicleInfo {
    vType
    //(...)
}

So, do one of the following:

pawn Код:

if(eVehicleType:vStats[vehicleID][vType] == VEHICLE_TYPE_FACTION)
//or
if(vStats[vehicleID][vType] == VehicleInfo:VEHICLE_TYPE_FACTION)
//or
if(_:vStats[vehicleID][vType] == _:VEHICLE_TYPE_FACTION)

#e: and the reason why switch isn't causing tag mismatches, is because everything in there is reduced to numeric constants (_ tag), while if checks everything