diff --git a/addons/amxmodx/configs/zpsp_gamemodes.ini b/addons/amxmodx/configs/zpsp_gamemodes.ini
index 8661a02..3cfe45f 100644
--- a/addons/amxmodx/configs/zpsp_gamemodes.ini
+++ b/addons/amxmodx/configs/zpsp_gamemodes.ini
@@ -14,6 +14,7 @@
 ; GAMEMODE NAME = Assassin vs Snipers // Game mod Name
 ; GAMEMODE ENABLE = 1 // Enable Game mod ? (0 - Disable | 1 - Enable)
 ; GAMEMODE ENABLE ON ESCAPE MAP = 0 // Enable Game Mod On Zombie Escape Map ? (0 - Disable by default | 1 - Enable)
+; GAMEMODE FLAGS = a // Flag acess for start a gamemode
 ; GAMEMODE CHANCE = 50 // Chance of mod in 1 to x
 ; GAMEMODE RESPAWN MODE = 4 // Respawn Mode (0 - Don´t Respawn | 1 - Respawn as Human | 2 - Respawn as Zombie | 3 - Respawn Randonly | 4 - Balanced)
 ; GAMEMODE RESPAWN LIMIT = 0 // Respawn Limit (0 - Unlimited)
diff --git a/addons/amxmodx/configs/zpsp_special_classes.ini b/addons/amxmodx/configs/zpsp_special_classes.ini
index 308dadf..458c3e5 100644
--- a/addons/amxmodx/configs/zpsp_special_classes.ini
+++ b/addons/amxmodx/configs/zpsp_special_classes.ini
@@ -34,6 +34,7 @@
 ; ALLOW RESPAWN = 1 // Allow Respawn? (0 - Disable | 1 - Enable)
 ; PAINFREE = 0 // Allow Painfree? (0 - Disable | 1 - Enable)
 ; ENABLE = 1 // Enable special class (0 - Disable | 1 - Enable | 2 - Enable in Normal ZM Maps Only | 3 - Enable in ZE Maps Only)
+; FLAGS = a // Flag acess to make class
 ; NAME BY LANG = 0 // Name by Lang?
 ; LANG KEY = ITEM_LANG_DEFAULT_KEY // Lang Key
 
@@ -67,5 +68,6 @@
 ; ALLOW BURN = 0 // Allow Burn? (0 - Disable | 1 - Enable)
 ; ALLOW FROST = 0 // Allow Frozen? (0 - Disable | 1 - Enable)
 ; ENABLE = 1 // Enable special class (0 - Disable | 1 - Enable | 2 - Enable in Normal ZM Maps Only | 3 - Enable in ZE Maps Only)
+; FLAGS = a // Flag acess to make class
 ; NAME BY LANG = 0 // Name by Lang?
 ; LANG KEY = ITEM_LANG_DEFAULT_KEY // Lang Key
diff --git a/addons/amxmodx/scripting/include/zombie_plague_special.inc b/addons/amxmodx/scripting/include/zombie_plague_special.inc
index ed73603..6abfb6d 100644
--- a/addons/amxmodx/scripting/include/zombie_plague_special.inc
+++ b/addons/amxmodx/scripting/include/zombie_plague_special.inc
@@ -1510,6 +1510,36 @@ native zp_set_human_class_name(class, newname[]);
  */
 native zp_add_hud_text(const text[]);
 
+/**
+ * Register Zombie Class custom pain sound
+ *
+ * @param classid	Zombie Class index
+ * @param sound		Pain sound
+ * @return			True if sucess, false otherwise
+ * @error			If Zombie Class index are invalid
+ */
+native zp_register_zclass_painsnd(classid, const sound[]);
+
+/**
+ * Register Zombie Class custom death sound
+ *
+ * @param classid	Zombie Class index
+ * @param sound		Death sound
+ * @return			True if sucess, false otherwise
+ * @error			If Zombie Class index are invalid
+ */
+native zp_register_zclass_deathsnd(classid, const sound[]);
+
+/**
+ * Register Custom Special Zombie custom death sound
+ *
+ * @param classid	Special Zombie Class index
+ * @param sound		Death sound
+ * @return			True if sucess, false otherwise
+ * @error			If Custom Special Zombie index are invalid
+ */
+native zp_register_zmspecial_deathsnd(classid, const sound[]);
+
 /***************************************************
 -------------------- Forwards ----------------------
 ****************************************************/
diff --git a/addons/amxmodx/scripting/zombie_plague_special_45.sma b/addons/amxmodx/scripting/zombie_plague_special_45.sma
index 67b8396..13dfb47 100644
--- a/addons/amxmodx/scripting/zombie_plague_special_45.sma
+++ b/addons/amxmodx/scripting/zombie_plague_special_45.sma
@@ -294,6 +294,9 @@
 			- Added Native: zp_add_hud_text(const text[]);
 			- Added Native: zp_get_user_hud_type(id);
 			- Now all natives are using "style 0"
+			- Added Native: zp_register_zclass_painsnd(classid, const sound[])
+			- Added Native: zp_register_zclass_deathsnd(classid, const sound[])
+			- Added Native: zp_register_zmspecial_deathsnd(classid, const sound[])
 
 
 ============================================================================================================================*/
@@ -1021,6 +1024,9 @@ public plugin_natives() {
 	register_native("zp_set_human_class_info", "native_set_human_class_info");
 	register_native("zp_set_human_class_name", "native_set_human_class_name");
 	register_native("zp_get_human_class_realname", "native_get_hclass_realname");
+	register_native("zp_register_zclass_painsnd", "native_register_zclass_painsnd");
+	register_native("zp_register_zclass_deathsnd", "native_register_zclass_deathsnd");
+	register_native("zp_register_zmspecial_deathsnd", "native_register_zmspecial_deathsnd");
 }
 public plugin_precache() {
 	register_plugin(PLUGIN, VERSION, AUTHOR) // Register earlier to show up in plugins list properly after plugin disable/error at loading
@@ -10644,6 +10650,72 @@ public native_register_zombie_class(plugin_id, num_params) {
 	g_zclass_i++ // Increase registered classes counter
 	return (g_zclass_i-1); // Return id under which we registered the class
 }
+
+// Native: zp_register_zclass_painsnd(classid, const sound[])
+public native_register_zclass_painsnd(plugin_id, num_params) {
+	static classid, sound[64];
+	classid = get_param(1);
+	get_string(2, sound, charsmax(sound))
+	return register_zclass_sounds(0, classid, "PAIN SOUND", g_zclass_real_name, g_zclass_use_painsnd, g_zclass_painsnd_handle, sound)
+}
+
+// Native: zp_register_zclass_deathsnd(classid, const sound[])
+public native_register_zclass_deathsnd(plugin_id, num_params) {
+	static classid, sound[64];
+	classid = get_param(1);
+	get_string(2, sound, charsmax(sound))
+	return register_zclass_sounds(0, classid, "DEATH SOUND", g_zclass_real_name, g_zclass_use_deathsnd, g_zclass_deathsnd_handle, sound)
+}
+
+// Native: zp_register_zmspecial_deathsnd(classid, const sound[])
+public native_register_zmspecial_deathsnd(plugin_id, num_params) {
+	static classid, sound[64];
+	classid = get_param(1);
+	get_string(2, sound, charsmax(sound))
+	return register_zclass_sounds(1, classid, "DEATH SOUND", g_zm_sp_realname, g_zm_sp_use_deathsnd, g_zm_sp_deathsnd_handle, sound)
+}
+
+public register_zclass_sounds(is_sp, classid, key[], Array:realname, Array:enable_array, Array:handle_array, sound[]) {
+	if(is_sp) {
+		if(classid < MAX_SPECIALS_ZOMBIES || classid >= g_zm_specials_i) {
+			log_error(AMX_ERR_NATIVE, "[ZP] Invalid Custom Special class id (%d)", classid)
+			return false;
+		}
+	}
+	else {
+		if (classid < 0 || classid >= g_zclass_i) {
+			log_error(AMX_ERR_NATIVE, "[ZP] Invalid zombie class id (%d)", classid)
+			return false;
+		}
+	}
+
+	// Sound alterady enable
+	if (ArrayGetCell(enable_array, classid))
+		return true;
+	
+	engfunc(EngFunc_PrecacheSound, sound);
+
+	static Array:ArrSoundTemp
+	ArrSoundTemp = ArrayGetCell(handle_array, classid)
+	
+	// No sounds registered
+	if (ArrSoundTemp == Invalid_Array) {
+		ArrSoundTemp = ArrayCreate(64, 1)
+		ArraySetCell(handle_array, classid, ArrSoundTemp)
+	}
+	ArrayPushString(ArrSoundTemp, sound)
+	
+	// Save models to file
+	static real_name[32]
+	ArrayGetString(realname, classid, real_name, charsmax(real_name))
+	if(is_sp)
+		amx_save_setting_string_arr(ZP_ZOMBIECLASSES_FILE, real_name, key, ArrSoundTemp)
+	else 
+		amx_save_setting_string_arr(ZP_SPECIAL_CLASSES_FILE, fmt("Z:%s", real_name), key, ArrSoundTemp)
+
+	return true;
+}
+
 public native_get_extra_item_id(plugin_id, num_params) { // Native: zp_get_extra_item_id
 	if(!g_pluginenabled) return -1; // ZP Special disabled