The [Neutralizer] is a very viable exalted weapon for steel path, up to endurance. The normal drawbacks of sniper rifles are mitigated mostly by the weak point ricochets of the weapon giving it significant wave clearing potential while remaining a extremely potent single target annihilator. Warframe 1999 brought with it a host of buffs to sniper rifles and weak point hits/crits in general via new mods and arcanes, [Cyte-09] and the [Neutralizer] take even further advantage of these buffs making both a force to be reckoned with.
Missing slot is for Primary Acuity- 350% weak point damage 350% weak point critical strike. This mod is essential to the build.
As of writing, I'm getting 72 million red crits with it using my [Cyte-09] Deadeye Reverb build. Arcane Crepuscular (While invisible, gain +30% Ability Strength and +3x Final Critical Multiplier) is one of the new 1999 arcanes, and will significantly improve the weapon past these numbers.
Corrosive damage for strip, can be swapped as needed. If your running resupply you could run it as heat, while you did viral on the weapon. Always consider this option when running weapons on cyte, (unless you subsumed over for roar)
Higher zoom rates increase crit damage, zoom all the way in for the biggest damage numbers.
Even With invisibility [Cyte-09] is somewhat squishy. This can be significantly mitigated, if not negated entirely by taking a position in an adjacent room, and killing targets via headshots through the walls, which Is facilitated with Seek, allowing you to stay scoped and pull off headshots from relative safety, not having to avoid AoE attacks or reposition. You want to stay scoped as often as you can with this weapon, and being in an empty room makes that easy.