Ta or To... whats the difference :carduindisguise
Buy your research chemicals online, its way easier and you can get good sources most of the time.
Half life of Havoc is short. It is not two weeks. I am unsure on the exact half life but its less than a day. I would start PCT the day after you get done with havoc. No reason to wait, at worst you are just wasting nolva and thats better than wasting muscle in my eyes and it only by a day, if any.
And you can be tested for steroids in the military but your commanding officer has to prompt it, so they have to suspect you. Even then, they probably wouldn't unless your causing problems. And Havoc is legal for now so it won't show up on a piss test.