what mix of forces do you use in PBEM?

[embis]

Just wondered what sort of percentages of points people spend on Arty, Infantry, Engineers, Special Forces,Max number of Snipers etc. To produce a reasonably realistic mix of forces.

I realise there will be variations depending on the type of engagement and maybe even the nationalities. but I am curious as to the variation in what is considered realistic. So I can draw up my own "rules of thumb" for PBEM proposals