Just because somebody is ex forces - does not automatically mean they are going to be excellent - they may or may not be - but as I posted previously - it is their individual personality and skill which will make them good - not necessarily their service training/experience !
We had an ex SAC(T) working with us last year - he had a 100mph body but alas only a 10mph brain,he was always rushing around at great speed and grossly overtightening everything he could lay his hands on !
The other team members said it was because he had been in the RAF but I said it was just his personality - he would still have turned out like that if he was civvy trained.
We have 2 other recently ex RAF guys on another team - they are both very good