mcgregor - now group captain in the royal australian air force - spent 40 years in the army , most of those under the name malcolm .
in 2012 , after years of drowning agonising pain with alcohol and drugs , mcgregor stopped ` functioning ' .
` he did n't run a focus group or ring -lrb- conservative liberal members -rrb- cory or kevin andrews to see if it was ok , ' mcgregor says .