Index: binaries/data/mods/public/simulation/templates/template_unit_mechanical_siege_ballista.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/template_unit_mechanical_siege_ballista.xml
+++ binaries/data/mods/public/simulation/templates/template_unit_mechanical_siege_ballista.xml
@@ -30,7 +30,7 @@
     <Height>2.0</Height>
   </Footprint>
   <Health>
-    <Max>100</Max>
+    <Max>250</Max>
   </Health>
   <Identity>
     <GenericName>Bolt Shooter</GenericName>
Index: binaries/data/mods/public/simulation/templates/template_unit_mechanical_siege_onager.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/template_unit_mechanical_siege_onager.xml
+++ binaries/data/mods/public/simulation/templates/template_unit_mechanical_siege_onager.xml
@@ -29,7 +29,7 @@
     <BuildTime>25</BuildTime>
     <Resources>
       <wood>350</wood>
-      <stone>350</stone>
+      <stone>250</stone>
     </Resources>
   </Cost>
   <Footprint replace="">
@@ -37,7 +37,7 @@
     <Height>4.5</Height>
   </Footprint>
   <Health>
-    <Max>100</Max>
+    <Max>200</Max>
   </Health>
   <Identity>
     <GenericName>Siege Catapult</GenericName>