How do Supressors work and why are they alerting guards?

[Bjonk]

So I recently got into intravenous 2 and love the realism and amazing A.I. and basically everything about the game honestly. However i have spent the majority of my playthrough snaking around choking guys out or tazing them and i would like to go lethal but anytime I shoot a guard with a suppressed weapon no matter the distance atleast one other guard "hears something strange" and has to go investigate. Any clue how I can go lethal and stay quiet?

[Kigurumi (((魔神)))]

you need to shoot from further away, switch your ammo to subsonic, switch to a different gun that's quieter. or kill both guards together. the weapons menu lets you see how loud a weapon is under its current configuration.

[Biggus Dickus]

Supressed weapons still make a lot of noise, try using smaller calibers and subsonic ammo

[Bjonk]

Thanks!

[Vynestos]

another important thing to note is sound occlusion, shooting in a fully sealed room (no open doors, windows, etc.) is quieter to the outside compared to shooting in the open

[Filter62]

Real life supressor is like, Without it you can hear shot from 2km, with it from 1km. XD

[Taberone]

Suppressors are quite loud IRL, try using subsonic ammunition (ex. for 9x19 and .22 LR pistols) if its available
.45 ACP is already subsonic so you don't need to select subsonic ammunition

Suppressors make guards suspicious but they don't outright alert them like unsilenced gunfire does (unless you fire more than one shot or they're too close)

Suppressors can still be useful even when going loud, as it'll avoid drawing the entire map to your location and limit how many guards are rushing you at once. Suppressors are also good for shooting out the lights while reducing the number of guards that hear your gunfire.

[Duke Nukem]

You need to use Suppressor along with Subsonic ammo.

But still, the best use for them will be...not use them at all. Stick to EMP and PKC backpack.

[Rocky McRockerson]

Another thing to note - guns will tell you when in the equipment screen how much noise they make. The most silent gun afaik is the BP9, can't remember how far distance the noise was though.

[Biggus Dickus]

Originally posted by Rocky McRockerson:

Another thing to note - guns will tell you when in the equipment screen how much noise they make. The most silent gun afaik is the BP9, can't remember how far distance the noise was though.

The BP9 is the only truly quiet weapon, i think the second place is taken by the ruger w subsonic