To be honest I dont think that the lads fighting alongside him will give much of a toss. I also dont think that the taliban will care too much either during a firefight.
At the end of the day they are all wearing the same kit and look very much the same. It would be near on impossible to actually distinguish between any soldier in full kit, unshaven etc etc in normal conditions let alone in combat situations such as when those guys are out and about in afghanistan.
(sorry...I'm a squaddie brat and also joined up myself for a short while
)
I think the real danger would have come from identification due to media attention whilst back in base etc. That is why he has now been pulled back from active service. The risk posed whilst out on patrol would have been the same for every member of his team regardless of who they are.
-ChEf