NOTE: BUILD WHATEVER YOU NEED TO SURVIVE, BUT REMEMBER YOUR RANGE: ITS 265%!!! Don't go too high or lower and you might blow it up.
His 4th can stripping armor so high-level enemy is a no-problemo, his 1st replace with Spectrorage of [Gara] from Helminth, "This" ability is very important with ranged enemy such as Grindeer or Corpis, it causes 'em not to combat in long range and running inside the circle of the Spectrorage, without Spectrorage of [Gara], it might feck your setup cause your [Vauban]'s 4th it isn't long enough (265% is too low from there attack range and can shoot you from far far away, equal your 4th is useless). Use this in specific zone outside your 4th range a little bit so that they can running inside the circle
At this range you can setup either Ophelia-Uranus, Mot-Void (in 4th path spawn, not the damn sewer spawn), Elara/Cameria-Jupiter, etc...
You can take this setup in either solo or duo but remember: Vauban can be a Top-Tier-griefing machine if you messed up the setup and that could cause you and your fellow tennoes a cracking butt-nuts.