No tabs any longer Arthur, I joined in 90 and I've never seen them in rations... not sure when the practice died out.
The new rations are pretty good, 3 heatable foil pouches per day, lucozade sport to replace the screech, we even get tabasco and a marmite lookalike. I was eating rations only yesterday... the pork sausages with beans and omelette are surprisingly nice. I suppose it all depends on how cold and hungry you are.
My pick of the old lot was probably the bacon burgers.