Normally u should ask urself what ur opponent is? There around 4 or 5 BO for NE including 2v2 BO. Its all depends on ur opponents race.
First Scout with wisps. Stay cool when its time to place Wisps, take advantages of the map, u need to see everythings and every moves ur ennemi do!! :lucifer Scouting is important to start ur BO. for example, if ur ennemi took random race, u fall in a deep shit :bugeyes lol.
Ill tell u a non-neutral hero BO for example taking on a random player.
4 wisps gold,
2 wisps training
1 wisp making altar
-----
1 wisp trained make moonW
pump wisp from main and scout all the map. - leave around 3 or 4 wisps in base to avoid getting harassed - ( good spot to place wisps is behind mine not cleared, scouting player location, scouting expand...etc)
-----
!!Ohhh u found ur ennemi is an orc!!
Now returning on the BO order
when altar is done make DH because u didn.t know what ur ennemi was and DH is a well balanced hero.
when u got around 160 woods make hall and aow + an extra moonW
-----
With ur Hero harass the orc hero with mana burn while u are training some hunts, after a while or harassing u should have around 3 moonW when ur hero should be around lvl 3
-----
tech tier2
at this point ur army should exceed 40food or 50food, ur army should be some hunts and archers.
-----
Now Vs an orc
DH should be a good meat shield protecting ur army because agains orc u need dotts and archers and dryads
----- Now returning on ur BO
get a 2 (dammit f***ing french version) make 2 building that creat DRY (sry forgot the name) and 1 dotts building get 2 more moonW
-----
Second hero is good when DH reach lvl 5 like a potm to add an extra damage for ur ranged units, or a kotg to slow hero
-----
Now u got an army around 70food DH,2hero, dotts, dryads(gets fews mgs or bear if u got difficulty with is melee)
Dry bear build pwn orc easily u should have problem and the moral is.......
........BO depend on the situation
If u got questions about something else just ask