A quick idea...
We played an interesting game the other evening, with the Rifle
Brigade attempting a fighting withdrawal through a built up area of
Calais. To reflect the abilities of these regular servicemen, and
the emphasis on marksmanship in the pre-war British Army, we allowed
the Sniper card to be used by any one rifle section of the player's
choice each time it came out. I would reccomend this only for
regular units, not territorials (indeed the QVR troops on the table
were not allowed to benefit from this).