Best Build For Vauban

[JohnBVertigo]

     For the past week I've been on the hunt for Mag Prime, and have finally been able to grab a good amount of void keys. I'm mostly terrified of playing T3 survival; since my last runs on T3 defense have never shown great progression.

I'm stuck on using Vauban; besides how much fun he is to play. What build should I run with? 
Obliviously Telsa, and Bastille is a required for great spacing; and ground control. But is vortex a must have?

What Builds do most of you guys run for T3 Survival?

[Aver]

honestly just get a decent team and you can almost do w/e you want in t3 survival... defense is the only t3 that forces you to be certain frames, the rest you just need decent guns

[QgeL]

my build and in my opinion the best build:

 

forget about tesla it does electrical dmg, its useless on high lvl and its just a waste of time

and energy. While your throwing 10 teslas u could kill everything with your weapons or someone else can use a dmg ulti.