When i was with various Chieftain Regiments we were always working our days and nights away in camp and exercise doing pack lifts and gearbox lifts to repair the normal Chieftain faults etc as well as the usual oil/coolant/fuel leaks which didnt require lifts. How do these tank driving companies cope? Do they have pack lifts as often as we did? Do they do them? Do they have spares and do they employ ex VMAs to help ( I'm ex VMA) or what? I cant imagine them being able to diagnose TN12 faults(4 Foot high test!) as easy as we did it. Or am i completely wrong?