diff --git a/.gitignore b/.gitignore
index c3d2ae7..a578295 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,5 +7,7 @@ texHeaders.bin
 *.swo
 *.biprivatekey
 Thumbs.db
+keys/*
+.hemtt/local
 
 node_modules
diff --git a/addons/api/functions/fnc_attachZenFunctions.sqf b/addons/api/functions/fnc_attachZenFunctions.sqf
index ba2c5a3..c59981c 100644
--- a/addons/api/functions/fnc_attachZenFunctions.sqf
+++ b/addons/api/functions/fnc_attachZenFunctions.sqf
@@ -22,7 +22,13 @@ private _cat = "FP Zombies";
       _args params ["_pos"];
 
       ([_pos, "AREA:", [_radius, _radius, 0, true]] call CBA_fnc_createTrigger) params ["_trigger"];
-      [_trigger, _density, -1, -1, _maxActive] remoteExecCall [QFUNC(registerZone), 2];
+      private _hcs = EGVAR(zombies,headlessClients) select {!isNull _x};
+      if (_hcs isNotEqualTo []) then {
+        [_trigger, _density, -1, -1, _maxActive] remoteExecCall [QFUNC(registerZone), selectRandom _hcs];
+      } else {
+        [_trigger, _density, -1, -1, _maxActive] remoteExecCall [QFUNC(registerZone), 2];
+      };
+
   }, {}, [_pos]] call zen_dialog_fnc_create;
 }] call zen_custom_modules_fnc_register;
 
@@ -39,12 +45,15 @@ private _cat = "FP Zombies";
       params ["_dialog", "_args"];
       _dialog params ["_amount", "_radius"];
       _args params ["_pos"];
+      private _posList = [];
       for "_i" from 1 to _amount do {
-        private _z = [] call EFUNC(zombies,spawnZombie);
-        if (!isNull _z) then {
-          private _rpos = [_pos, _radius] call CBA_fnc_randPos;
-          [_z, _rpos] call EFUNC(zombies,zombieInit);
-        };
+        _posList pushBack ([_pos, _radius] call CBA_fnc_randPos);
+      };
+      private _hcs = EGVAR(zombies,headlessClients) select {!isNull _x};
+      if (_hcs isNotEqualTo []) then {
+        [QEGVAR(zombies,spawnZombieBulk), [[], _posList], selectRandom _hcs] call CBA_fnc_targetEvent;
+      } else {
+        [QEGVAR(zombies,spawnZombieBulk), [[], _posList]] call CBA_fnc_serverEvent;
       };
   }, {}, [_pos]] call zen_dialog_fnc_create;
 }] call zen_custom_modules_fnc_register;
diff --git a/addons/api/functions/fnc_init.sqf b/addons/api/functions/fnc_init.sqf
index a4a8f96..9608a68 100644
--- a/addons/api/functions/fnc_init.sqf
+++ b/addons/api/functions/fnc_init.sqf
@@ -26,18 +26,15 @@ if (hasInterface) then {
 ["ace_firedPlayerVehicleNonLocal", {_this call EFUNC(zombies,firedVehicle)}] call CBA_fnc_addEventHandler;
 ["ace_firedNonPlayerVehicle", {_this call EFUNC(zombies,firedVehicle)}] call CBA_fnc_addEventHandler;
 
-// TODO: HC support
-if (isServer) then {
+if (isServer || {!hasInterface}) then {
     [{
-      EGVAR(zones,players) = allPlayers select {
+      EGVAR(zones,players) = (call CBA_fnc_players) select {
         alive _x &&
         {!(_x isKindOf "VirtualMan_F")} &&
         {!(_x getVariable [QEGVAR(zombies,ignore), false])} &&
         {simulationEnabled _x}
       };
     }, 2] call CBA_fnc_addPerFrameHandler;
-
-    [EFUNC(zones,zonePfh), 0.03] call CBA_fnc_addPerFrameHandler;
 };
 
 true
diff --git a/addons/api/functions/fnc_registerZone.sqf b/addons/api/functions/fnc_registerZone.sqf
index 41d2ab0..66362cd 100644
--- a/addons/api/functions/fnc_registerZone.sqf
+++ b/addons/api/functions/fnc_registerZone.sqf
@@ -32,3 +32,7 @@ _zone setVariable [QEGVAR(zones,maxActiveInZone), _maxActiveInZone];
 
 TRACE_4("Registering zone",_zone, abs round _amount, abs round _radius, abs round _activateDistance, _maxActiveInZone);
 EGVAR(zones,zones) pushBack _zone;
+
+if (EGVAR(zones,zonePFH) isEqualTo -1) then {
+  EGVAR(zones,zonePFH) = [EFUNC(zones,zonePfh), 0.03] call CBA_fnc_addPerFrameHandler;
+};
diff --git a/addons/api/functions/fnc_spawnHorde.sqf b/addons/api/functions/fnc_spawnHorde.sqf
index 5b9c4db..7d835ed 100644
--- a/addons/api/functions/fnc_spawnHorde.sqf
+++ b/addons/api/functions/fnc_spawnHorde.sqf
@@ -7,7 +7,7 @@ params [
   ["_ignoreMaxZombies", false]
 ];
 
-private _zombies = [];
+private _posList = [];
 for "_i" from 1 to _amount do {
   private _rnd = if (_pos isEqualType objNull && {_pos isKindOf "EmptyDetector"}) then {
     [_pos] call CBA_fnc_randPosArea;
@@ -15,14 +15,18 @@ for "_i" from 1 to _amount do {
     (_pos call CBA_fnc_getPos) getPos [random 10, random 360];
   };
 
-  private _zombie = [selectRandom ["zombie_bolter", "zombie_runner"], _ignoreMaxZombies] call EFUNC(zombies,spawnZombie);
-  if (!isNull _zombie) then {
-    _zombies pushBack _zombie;
-    [_zombie, _rnd, true] call EFUNC(zombies,zombieInit);
-    if (_sound && {_i >= _amount} && {!isNull _zombie}) then {
-      [_zombie, ["fpz_yell", 1200, 1]] remoteExecCall ["say", 0];
-    };
-  };
+  _posList pushBack _rnd;
 };
 
-_zombies
+if (_posList isEqualTo []) exitWith {};
+
+private _hcs = EGVAR(zombies,headlessClients) select {!isNull _x};
+if (_hcs isNotEqualTo []) then {
+  [QEGVAR(zombies,spawnZombieBulk), [["zombie_bolter", "zombie_runner"], _posList, true], selectRandom _hcs] call CBA_fnc_targetEvent;
+} else {
+  [QEGVAR(zombies,spawnZombieBulk), [["zombie_bolter", "zombie_runner"], _posList, true]] call CBA_fnc_serverEvent;
+};
+
+if (_sound) then {
+  playSound3D ["rvg_zeds\sounds\zombie_yell.ogg", objNull, false, AGLToASL (_posList select 0), 5, 1, 1200];
+};
diff --git a/addons/zombies/XEH_postInit.sqf b/addons/zombies/XEH_postInit.sqf
index 365b23f..8585783 100644
--- a/addons/zombies/XEH_postInit.sqf
+++ b/addons/zombies/XEH_postInit.sqf
@@ -1,5 +1,31 @@
 #include "script_component.hpp"
 
+if (!hasInterface && {!isServer}) then {
+  // headless client
+  [QGVAR(headlessClientJoined), [player]] call CBA_fnc_serverEvent;
+};
+
+[QGVAR(spawnZombie), {
+  params [
+    ["_type", ""],
+    ["_pos", []],
+    ["_isHorde", false]
+  ];
+  private _zombie = [_type] call FUNC(spawnZombie);
+  if (isNull _zombie) exitWith {};
+  [_zombie, _pos, _isHorde] call FUNC(zombieInit);
+}] call CBA_fnc_addEventHandler;
+
+[QGVAR(spawnZombieBulk), {
+  params [["_types", []], ["_posList", []], ["_isHorde", false]];
+  if (_types isEqualTo []) then {
+    _types = [""];
+  };
+  {
+    [QGVAR(spawnZombie), [selectRandom _types, _x, _isHorde]] call CBA_fnc_localEvent;
+  } forEach _posList;
+}] call CBA_fnc_addEventHandler;
+
 // Runs for everyone when a zombie is spawned
 [QGVAR(onSpawn), {
   params ["_zombie", "_identity", "_pos"];
diff --git a/addons/zombies/XEH_preInit.sqf b/addons/zombies/XEH_preInit.sqf
index 4e0e605..dfc0bc1 100644
--- a/addons/zombies/XEH_preInit.sqf
+++ b/addons/zombies/XEH_preInit.sqf
@@ -4,7 +4,19 @@ ADDON = false;
 
 #include "XEH_PREP.hpp"
 
-ADDON = true;
-
 GVAR(targets) = [];
 GVAR(zombies) = [];
+
+if (isServer) then {
+  GVAR(headlessClients) = [];
+  publicVariable QGVAR(headlessClients);
+  [QGVAR(headlessClientJoined), {
+    params ["_headlessClient"];
+    GVAR(headlessClients) = GVAR(headlessClients) - [objNull];
+    if (_headlessClient in GVAR(headlessClients)) exitWith {};
+    GVAR(headlessClients) pushBack _headlessClient;
+    publicVariable QGVAR(headlessClients);
+  }] call CBA_fnc_addEventHandler;
+};
+
+ADDON = true;
diff --git a/addons/zones/XEH_preInit.sqf b/addons/zones/XEH_preInit.sqf
index 114ad22..58a82ce 100644
--- a/addons/zones/XEH_preInit.sqf
+++ b/addons/zones/XEH_preInit.sqf
@@ -8,6 +8,7 @@ ADDON = true;
 
 GVAR(zones) = [];
 GVAR(players) = [];
+GVAR(zonePFH) = -1;
 
 [QGVAR(registerLocalZone), {
   params [["_zone", objNull]];
diff --git a/addons/zones/functions/fnc_activeZoneCheck.sqf b/addons/zones/functions/fnc_activeZoneCheck.sqf
index cdcb4bf..851beed 100644
--- a/addons/zones/functions/fnc_activeZoneCheck.sqf
+++ b/addons/zones/functions/fnc_activeZoneCheck.sqf
@@ -18,7 +18,7 @@ for "_i" from (count _zombies) to 0 step -1 do {
       };
     #endif
   } else {
-    if (!NEARBY_PLAYER(_zombie,fpz_despawnDistance)) then {
+    if (!NEARBY_PLAYER(getPosWorld _zombie,fpz_despawnDistance)) then {
       private _pos = _zombie getVariable [QGVAR(zonePos), []];
       if !(_pos isEqualTo []) then {
         _positions pushBack _pos;
@@ -39,7 +39,7 @@ private _empty = _zombies isEqualTo [];
 if (_empty && {_positions isEqualTo []}) exitWith {true};
 
 private _deactivateDistance = (_zone getVariable [QGVAR(activateDistance), fpz_maxChaseDistance]) + DEACTIVATE_MODIFIER;
-if (_empty && {!([_zone, _deactivateDistance] call FUNC(nearPlayer))}) exitWith {
+if (_empty && {!([getPosWorld _zone, _deactivateDistance] call FUNC(nearPlayer))}) exitWith {
   _zone setVariable [QGVAR(active), false];
   #ifdef DEBUG_MODE_FULL
     {format ["%1%2", QGVAR(debugMrkPos), _x] setMarkerAlphaLocal 0} forEach _positions;
diff --git a/addons/zones/functions/fnc_nearPlayer.sqf b/addons/zones/functions/fnc_nearPlayer.sqf
index 1ba98e2..1d5430d 100644
--- a/addons/zones/functions/fnc_nearPlayer.sqf
+++ b/addons/zones/functions/fnc_nearPlayer.sqf
@@ -1,10 +1,4 @@
 #include "script_component.hpp"
 params ["_pos", "_range"];
 
-private _ret = false;
-
-{
-  if (_x distance _pos < _range) exitWith {_ret = true};
-} forEach GVAR(players);
-
-_ret
+(GVAR(players) inAreaArray [_pos, _range, _range, 0, false, -1]) isNotEqualTo []
diff --git a/addons/zones/functions/fnc_zonePfh.sqf b/addons/zones/functions/fnc_zonePfh.sqf
index 2710c44..3b7ba28 100644
--- a/addons/zones/functions/fnc_zonePfh.sqf
+++ b/addons/zones/functions/fnc_zonePfh.sqf
@@ -2,7 +2,8 @@
 
 params ["", ["_pfhId", -1]];
 if (GVAR(zones) isEqualTo []) exitWith {
-  //[_pfhId] call CBA_fnc_removePerFrameHandler;
+  [_pfhId] call CBA_fnc_removePerFrameHandler;
+  GVAR(zonePFH) = -1;
 };
 
 private _zone = GVAR(zones) deleteAt 0;
@@ -24,7 +25,7 @@ if (_zone getVariable [QGVAR(active), false]) then {
     GVAR(zones) pushBack _zone;
   };
 } else {
-  private _playerNear = [_zone, _zone getVariable [QGVAR(activateDistance), fpz_maxChaseDistance]] call FUNC(nearPlayer);
+  private _playerNear = [getPosWorld _zone, _zone getVariable [QGVAR(activateDistance), fpz_maxChaseDistance]] call FUNC(nearPlayer);
   if (_playerNear) then {_zone setVariable [QGVAR(active), true]};
   GVAR(zones) pushBack _zone;
 };
diff --git a/hemtt.json b/hemtt.json
deleted file mode 100644
index 7a2b444..0000000
--- a/hemtt.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "version": "2",
-    "name": "fpz",
-    "prefix": "fpz",
-    "author": "FP Mod Team",
-    "modname": "fpz",
-    "keyname": "fpz_v{{version}}",
-    "signame": "fpz_v{{version}}",
-    "files": [
-        "mod.cpp",
-        "AUTHORS.txt",
-        "LICENSE",
-        "logo_ca.paa",
-        "README.md"
-    ],
-    "reuse_private_key": false,
-    "exclude": [
-        "*.psd",
-        "*.png",
-        "*.tga"
-    ]
-}
diff --git a/hemtt.toml b/hemtt.toml
index d04a83e..5685f98 100644
--- a/hemtt.toml
+++ b/hemtt.toml
@@ -3,8 +3,8 @@ name = "fpz"
 prefix = "fpz"
 author = "FP Mod Team"
 modname = "fpz"
-keyname = "fpz_v{{version}}"
-signame = "fpz_v{{version}}"
+# keyname = "fpz_v{{version}}"
+# signame = "fpz_v{{version}}"
 files = [
     "mod.cpp",
     "AUTHORS.txt",