Let's not allow a good bit of banter to cloud the issue. Mil pilots want to fly on QFE in the vicinity of the aerodrome. As mentioned earlier QNH was tried (posed no problems to ATC) but the aircrew didn't like it. If the primary customer is using QFE, it makes sense to me that all traffic likely to mix it should also use QFE. Procedures are very clear cut, well tried and tested and all Mil controllers are fantastic at sums! (I should know
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Whilst A Good Headin might have gone a tad OTT, his/her sentiment is not a million miles wide of the mark - in very busy, constantly changing scenarios, the procedures really do work!