Index: binaries/data/mods/public/simulation/templates/structures/mace/arsenal.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/structures/mace/arsenal.xml
+++ binaries/data/mods/public/simulation/templates/structures/mace/arsenal.xml
@@ -3,6 +3,10 @@
   <Identity>
     <Civ>mace</Civ>
     <SpecificName>Hoplothēkē</SpecificName>
+    <VisibleClasses datatype="tokens">-City Town</VisibleClasses>
+    <Requirements>
+      <Techs datatype="tokens">-phase_city phase_town</Techs>
+    </Requirements>
   </Identity>
   <VisualActor>
     <Actor>structures/hellenes/workshop.xml</Actor>
Index: binaries/data/mods/public/simulation/templates/units/mace/siege_oxybeles_packed.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/units/mace/siege_oxybeles_packed.xml
+++ binaries/data/mods/public/simulation/templates/units/mace/siege_oxybeles_packed.xml
@@ -4,6 +4,9 @@
     <Civ>mace</Civ>
     <SpecificName>Oxybelḗs</SpecificName>
     <Icon>units/hele/siege_oxybeles_packed.png</Icon>
+   <Requirements>
+      <Techs datatype="tokens">-phase_city phase_town</Techs>
+   </Requirements>
   </Identity>
   <Pack>
     <Entity>units/mace/siege_oxybeles_unpacked</Entity>