The allowances for military pilots are all laid out in CAP804. Assuming from six years of training that you completed your conversion to a front line type (and got your wings) but didn't get your CofC or Green IR then you are a QMP(H). This gets you well on the way to a CPL(H) if you have 70 hrs P1. No joy with formal IR credit unless you bagged a Green rating. No joy with ATPL(H) unless you got CofC on a multi pilot type. But as Simon says, the Head of Training at your chosen provider can get apply to CAA for reduction
So read CAP804 exhaustively (Part I, Section 4, Part O) (I found some stuff out that not even the training providers knew which saved me thousands), get your Class One then cost it up before setting down the road. From your position it might be cheaper to go fixed wing though. You can always email the CAA with questions. They do get back to you - sometimes quickly!