Ivara's noise arrow buggy?

[CornyNinja]

After much spy farm suffering, I finally got and made an Ivara set on my ps4 account. However, I'm having trouble with the noise arrow. Even with tonsa range (overextended cunning drift and stretch) and some efficiency (just streamline, didn't wanna knock down the duration), and while soloing with prowl invisibility, it hardly ever actually attracts enemies like it should. Am I missing something and using it wrong, or is noise arrow just not that useful?

[(PSN)ghinellil]

While prowl, it work very slowly.

[Insizer]

It seems to me that noise arrow is only useful if the enemies are unalerted and if the alarms have never been turned on. Other than that it is completely useless.

[PsiWarp]

Noise Arrow can be inconsistent with its effects if a) alarm is on, b) enemies are alerted, c) there are players in enemy detection range.

Plus enemies that are affected walk very slowly to the point of impact.

[dstrawberrygirl]

I've mostly ignored noise arrow due to the fact that it's just not effective enough to draw enemies away. Sleep arrow with your range over 100 will incapacitate a decent number of enemies coming through a doorway, giving you time to think, move, or the chance to stealth kill them (dagger + covert lethality = guaranteed kill even on really high level enemies). Sometimes a cloak bubble around a fallen teammate is useful.

[Inarticulate]

The main uses of Noise Arrow are to move enemies somewhere where they won't get in the way, get highly mobile enemies like Combas and Scrambuses to stop zooming around, or break the enemy AI in Interception.

[DatDarkOne]

1 hour ago, Inarticulate said:

The main uses of Noise Arrow are to move enemies somewhere where they won't get in the way, get highly mobile enemies like Combas and Scrambuses to stop zooming around, or break the enemy AI in Interception.

This^  all day long.  Add in using it to gather together enemies for group stealth kills. 

It's effectiveness is highly effected by range.  If your range stat is suffering, then Noise Arrow's effect will suffer also.  Sometimes to the point of not having any effect at all.