Irish going to France to join the French Army?

Well lads I am an Irish citizen considering joining the French army. The mother is French so I have dual citizenship and I meet all the other requirements for joining the French Army. However that's easier said than done. Unlike the Foreign Legion the French Army won't take you in on arrival you have to wait a few weeks for the application process to be completed and i can't just apply online.

I know it's a very specific and probably unusual situation to be in but if anyone has any experience at all could offer to help me or know someone who could help I would appreciate it so much. Cheers.