Stealth and Detection

Hiding

If players do not Log Out and found hiding players through searching, as long as hiding player happen to be in that tile, hiding players will always be found in that zone without searching even if they try to hide or anything by non-log-out players who found hiding players.
Hiding will fail if there is at least one player in the same zone.
Try not to hide in hospitals, gun shops, police department and Lazarix buildings since these buildings provide important supplies for Human and are searched many times.

Hanging can fail. Vampire must hide inside buildings.
Light on, no night vision, Sharpen senses: 3rd search roughly to detect.
Light off, no night vision, Sharpen senses: 13th search roughly to detect.
Light off, no night vision, no Sharpen senses: keep trying, if you are not zombie, you can detect hiding players.
You will lose 2 blood thirst kills per hang command.

If you die, detection is disabled.
If buildings are barricaded, there is a high chance that there are players hiding inside building because NPC always destroy barricades and Construction Workers always build lightly barricades which mean buildings that are not cover with no barricade or lightly barricades have a great chance that there are players hiding inside.
If you are close to barricades or fences, when someone attack them you can detect attackers' attacks.

Race	Hide	Play dead	Hang
Human	Detectable	Detectable	Detectable
Zombie	need Identify life (skill)	Undetectable	Undetectable
Vampire	Detectable	Detectable	Detectable

Action	Note
Moan (Zombie's skill)	a zombie can use moan for 1 ap to create a noise telling its location to everyone in 4x4 radius.
Identify life (passive) (Zombie's skill)	Allowing you to detect Human when you play as a zombie when using search command while normal zombies can not detect hiding players
Silent Whisper (Vampire's skill)	All vampires in 2x2 radius can hear the message. Whisper costs 1 ap.
Supernatural Senses (Vampire's skill)	Using 1 AP to check how many players are inside non-multi buildings in your current tile on barricade, lightly barricade or no barricade.
Smell Rot (Zombie's skill)	let a zombie detect all zombies who are not hiding or dead in 4x4 radius of users all time.
Track Prey (Vampire's skill)	If and only if your vampire is attacked or attacked other beings successfully, as long as other beings do not die or leave 4x4 radius of your vampire, you can detect where they are. If the weather is not clear, you can still detect them but there is no message telling their specific hiding places.
Discerning Palette (Vampire's skill)	When using Supernatural Senses, you can tell if beings inside buildings are in your friend list, enemy list or not both.

Type of attack	Radius	Detection	Note
Grenade (8)	5x5	Explosion echo	Soldiers at fort can use grenade causing Explosion echo when they fight with players. Sometimes, soldiers at fort use grenades and miss resulting in Explosion echo.
Assault rifle	3x3	Assault rifle	Good for everything except for machines
Shotgun	3x3	Shotgun	Good for everything
Sawn off Shotgun	3x3	Shotgun	An upgraded version of Shotgun
		massive metal thud echo
Mounted gun	at least 3x3	roaring truck echo	Mantis Armored Vehicle's attack
	2x2 +	very gross bursting echo
	2x2 +	bursting gore echo
Pistol	2x2	Pistol	No one really want to use pistol, right?
SuppressSuppressed Pistol	None	None	Rags are rare

Type of flare	Radius	Detection	Note
New Year's fireworks	5x5 +	a colorful New Year's firework exploding
Flare	8x8?	flare rising quickly	Blue, Red, Green, Yellow and orange

Many melee attacks do not provide any sound.

Type of attack	Radius	Detection	Note
Scream	at least 3x3	Scream	1 AP to use. Only Human at Funeral house on low hp?
Chainsaw	1x1	grinding chainsaw echo