I've landed Albert onto a strip that a C17 had been using previously and it had made a real old mess. We had to move the strip, it was that badly dug up. The next two weeks of multi-albert utilisation didn't do any where near the same damage. Not scientific, just my experience....
Equiv., if your air force had A400's, could it do anything "tactical' that a combination of C-17's and C130's can't do? It seems that the A400 may be too betwixt and between for an air force that already has the other two aircraft.
The best hope for A400 sales success may be that C-17 production ends too soon.
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Does anyone know if the ground pressure of a heavily loaded A400's tires would be much less than the ground pressure of a C-17 landing with the same gross weight? I don't know the answer to that. I'm asking. I suppose one could look up the respective tire sizes and calculate the ratios of tire area on ground and kinetic energy at touchdown/tire area on ground of the two aircraft at equal gross weight.