The pay is under belgian taxes...
that can mean something like 3.500 € for a captain, even on the 747! on the other side, ops management is made of a bunch of belgian aviation frustrated guys who never could make it into Sabena... now they are even more pissed to fly boxes all night long for peanuts... so if you land there with any better money (through agencies i.e.) they will make your life proportional to their ever growing frustration. take care!