diff --git a/binaries/data/mods/public/art/actors/units/romans/onager_operator_a.xml b/binaries/data/mods/public/art/actors/units/romans/onager_operator_a.xml
new file mode 100644
index 0000000000..dd9da8642f
--- /dev/null
+++ b/binaries/data/mods/public/art/actors/units/romans/onager_operator_a.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<actor version="1">
+  <castshadow/>
+  <group>
+    <variant frequency="100" name="Onager operator">
+      <animations>
+        <animation file="biped/new/onager_idle_a.dae" name="Idle" speed="100"/>
+        <animation event="0.145" load="0.05" file="biped/new/onager_attack_a.dae" name="attack_ranged" speed="100"/>
+      </animations>
+      <mesh>skeletal/new/m_armor_tunic_short.dae</mesh>
+      <props>
+        <prop actor="props/units/heads/new/head_hele_b.xml" attachpoint="head"/>
+        <prop actor="props/units/heads/rome_monte_simple.xml" attachpoint="helmet"/>
+      </props>
+      <textures>
+        <texture file="skeletal/rome_isw_a.dds" name="baseTex"/>
+      </textures>
+    </variant>
+  </group>
+  <group>
+    <variant file="biped/death_infantry.xml"/>
+  </group>
+  <material>player_trans.xml</material>
+</actor>
diff --git a/binaries/data/mods/public/art/actors/units/romans/onager_operator_b.xml b/binaries/data/mods/public/art/actors/units/romans/onager_operator_b.xml
new file mode 100644
index 0000000000..41e8781ead
--- /dev/null
+++ b/binaries/data/mods/public/art/actors/units/romans/onager_operator_b.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<actor version="1">
+  <castshadow/>
+  <group>
+    <variant frequency="100" name="Onager operator">
+      <animations>
+        <animation file="biped/new/onager_idle_b.dae" name="Idle" speed="100"/>
+        <animation event="0.145" load="0.05" file="biped/new/onager_attack_b.dae" name="attack_ranged" speed="100"/>
+      </animations>
+      <mesh>skeletal/new/m_armor_tunic_short.dae</mesh>
+      <props>
+        <prop actor="props/units/heads/new/head_hele_b.xml" attachpoint="head"/>
+        <prop actor="props/units/heads/rome_monte_e.xml" attachpoint="helmet"/>
+      </props>
+      <textures>
+        <texture file="skeletal/rome_isp_e_1.dds" name="baseTex"/>
+      </textures>
+    </variant>
+  </group>
+  <group>
+    <variant file="biped/death_infantry.xml"/>
+  </group>
+  <material>player_trans.xml</material>
+</actor>
diff --git a/binaries/data/mods/public/art/actors/units/romans/onager_operator_c.xml b/binaries/data/mods/public/art/actors/units/romans/onager_operator_c.xml
new file mode 100644
index 0000000000..7687d3a3d1
--- /dev/null
+++ b/binaries/data/mods/public/art/actors/units/romans/onager_operator_c.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<actor version="1">
+  <castshadow/>
+  <group>
+    <variant frequency="100" name="Onager operator">
+      <animations>
+        <animation file="biped/new/onager_idle_c.dae" name="Idle" speed="100"/>
+        <animation event="0.145" load="0.05" file="biped/new/onager_attack_c.dae" name="attack_ranged" speed="100"/>
+      </animations>
+      <mesh>skeletal/new/m_armor_tunic_short.dae</mesh>
+      <props>
+        <prop actor="props/units/heads/new/head_hele_b.xml" attachpoint="head"/>
+        <prop actor="props/units/heads/rome_monte_e.xml" attachpoint="helmet"/>
+      </props>
+            <textures>
+        <texture file="skeletal/rome_isw_a.dds" name="baseTex"/>
+      </textures>
+    </variant>
+  </group>
+
+  <group>
+    <variant file="biped/death_infantry.xml"/>
+  </group>
+  <material>player_trans.xml</material>
+</actor>
diff --git a/binaries/data/mods/public/art/actors/units/romans/siege_onager.xml b/binaries/data/mods/public/art/actors/units/romans/siege_onager.xml
index 2d0d4f63cf..968077e393 100644
--- a/binaries/data/mods/public/art/actors/units/romans/siege_onager.xml
+++ b/binaries/data/mods/public/art/actors/units/romans/siege_onager.xml
@@ -4,13 +4,13 @@
   <group>
     <variant frequency="100" name="rome onager">
       <animations>
-        <animation file="mechanical/siege_onager_idle.dae" name="Idle" speed="100"/>
+        <animation file="mechanical/siege_onager_idle.dae" name="Idle" speed="100" />
         <animation event="0.145" load="0.05" file="mechanical/siege_onager_attack.dae" name="attack_ranged" speed="100"/>
       </animations>
       <mesh>structural/siege_onager.dae</mesh>
       <textures>
         <texture file="structural/rome_siege_onager.png" name="baseTex"/>
-        <texture file="structural/rome_siege_onager_spec.png" name="specTex"/>      
+        <texture file="structural/rome_siege_onager_spec.png" name="specTex"/>
       </textures>
       <props>
         <prop actor="props/units/weapons/rock.xml" attachpoint="loaded-projectile"/>
diff --git a/binaries/data/mods/public/art/actors/units/romans/siege_onager_pivot.xml b/binaries/data/mods/public/art/actors/units/romans/siege_onager_pivot.xml
new file mode 100644
index 0000000000..04dfe3caa6
--- /dev/null
+++ b/binaries/data/mods/public/art/actors/units/romans/siege_onager_pivot.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<actor version="1">
+  <group>
+    <variant frequency="100" name="Rome Onager">
+      <mesh>structural/siege_onager_pivot.dae</mesh>
+      <props>
+        <prop actor="units/romans/siege_onager.xml" attachpoint="weapon"/>
+        <prop actor="units/romans/onager_operator_c.xml" attachpoint="engineer_c"/>
+        <prop actor="units/romans/onager_operator_b.xml" attachpoint="engineer_b" maxheight="20" minheight="-20"/>
+        <prop actor="units/romans/onager_operator_a.xml" attachpoint="engineer_a" />
+        <prop actor="props/units/rock_pile.xml" attachpoint="rock_ammo" maxheight="20" minheight="-20"/>
+      </props>
+      <textures>
+        <texture file="structural/hele_siege.dds" name="baseTex"/>
+      </textures>
+    </variant>
+  </group>
+  <material>basic_trans.xml</material>
+</actor>
diff --git a/binaries/data/mods/public/art/animation/biped/new/onager_attack_a.dae b/binaries/data/mods/public/art/animation/biped/new/onager_attack_a.dae
new file mode 100644
index 0000000000..153a48dc65
--- /dev/null
+++ b/binaries/data/mods/public/art/animation/biped/new/onager_attack_a.dae
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0e2f6845a0ccd983f7d2691135b2590cfab76f2bfa737010c04c143d044fb260
+size 1212454
diff --git a/binaries/data/mods/public/art/animation/biped/new/onager_attack_b.dae b/binaries/data/mods/public/art/animation/biped/new/onager_attack_b.dae
new file mode 100644
index 0000000000..5d707f2042
--- /dev/null
+++ b/binaries/data/mods/public/art/animation/biped/new/onager_attack_b.dae
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3f0e3afd8e56351b062e3bfcf1b063c0eb7f74e90f964eeb8ea742519c096b62
+size 1276437
diff --git a/binaries/data/mods/public/art/animation/biped/new/onager_attack_c.dae b/binaries/data/mods/public/art/animation/biped/new/onager_attack_c.dae
new file mode 100644
index 0000000000..a8b68cb2f3
--- /dev/null
+++ b/binaries/data/mods/public/art/animation/biped/new/onager_attack_c.dae
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c8deaa1fc6ee1b7214ec18bbf2d1a3ca14958b30bbf21281641c9017a4545625
+size 1193544
diff --git a/binaries/data/mods/public/art/animation/biped/new/onager_idle_a.dae b/binaries/data/mods/public/art/animation/biped/new/onager_idle_a.dae
new file mode 100644
index 0000000000..65ac67aeab
--- /dev/null
+++ b/binaries/data/mods/public/art/animation/biped/new/onager_idle_a.dae
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2d6a23c18a3ddebc69e996034c0de68a638e899773749eb9e2a1cac3968c1c85
+size 619418
diff --git a/binaries/data/mods/public/art/animation/biped/new/onager_idle_b.dae b/binaries/data/mods/public/art/animation/biped/new/onager_idle_b.dae
new file mode 100644
index 0000000000..73db9cb1cc
--- /dev/null
+++ b/binaries/data/mods/public/art/animation/biped/new/onager_idle_b.dae
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:52a5acf3a69a2c677570cdc2e2ac6ab63244c7e0a1af807997ce8d15733e95a1
+size 1294548
diff --git a/binaries/data/mods/public/art/animation/biped/new/onager_idle_c.dae b/binaries/data/mods/public/art/animation/biped/new/onager_idle_c.dae
new file mode 100644
index 0000000000..a75488a38f
--- /dev/null
+++ b/binaries/data/mods/public/art/animation/biped/new/onager_idle_c.dae
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:96954088b3407463c3757473cf88c76666c9e7c4f5f2602c8a3fd3c4165049aa
+size 618692
diff --git a/binaries/data/mods/public/art/meshes/structural/siege_onager.dae b/binaries/data/mods/public/art/meshes/structural/siege_onager.dae
index 9d40181ec9..5f4daddb59 100644
--- a/binaries/data/mods/public/art/meshes/structural/siege_onager.dae
+++ b/binaries/data/mods/public/art/meshes/structural/siege_onager.dae
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6363385790b9498514253d145976f139b61b12be5b9f113d5777dce143a5c4d5
-size 302941
+oid sha256:614a50ab4bc5bcf08253fb4a988a42497e560eef9ea7acdbc30ce5f62ddc3f9b
+size 418839
diff --git a/binaries/data/mods/public/art/meshes/structural/siege_onager_pivot.dae b/binaries/data/mods/public/art/meshes/structural/siege_onager_pivot.dae
new file mode 100644
index 0000000000..93350f7982
--- /dev/null
+++ b/binaries/data/mods/public/art/meshes/structural/siege_onager_pivot.dae
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c2939a8fabf3405ff588dd4b4b7c66db2ac141b63ce2d1a34fdd39a93f4065a4
+size 4091
diff --git a/binaries/data/mods/public/art/textures/skins/structural/rome_siege_onager.png b/binaries/data/mods/public/art/textures/skins/structural/rome_siege_onager.png
index 736b73b119..056308c2a3 100644
--- a/binaries/data/mods/public/art/textures/skins/structural/rome_siege_onager.png
+++ b/binaries/data/mods/public/art/textures/skins/structural/rome_siege_onager.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:9797e2c723c5adfe31bb4722747ac2940153f448b00d5df8b1c9d17a143c118f
-size 1372967
+oid sha256:cd6176c3ed44331b39574e87f221ba5523ed25ded5ef7ba51eefb14441d14358
+size 1277398
diff --git a/binaries/data/mods/public/art/textures/ui/session/portraits/units/rome_siege_onager_packed.png b/binaries/data/mods/public/art/textures/ui/session/portraits/units/rome_siege_onager_packed.png
new file mode 100644
index 0000000000..f89533b853
--- /dev/null
+++ b/binaries/data/mods/public/art/textures/ui/session/portraits/units/rome_siege_onager_packed.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5b29012501ca1552ceb7721a98d986ee069006bc14b7a7d781dc0843438ae14
+size 114859
diff --git a/binaries/data/mods/public/simulation/templates/units/rome_mechanical_siege_onager_unpacked.xml b/binaries/data/mods/public/simulation/templates/units/rome_mechanical_siege_onager_unpacked.xml
index 7eaf3db817..b7a2dd0927 100644
--- a/binaries/data/mods/public/simulation/templates/units/rome_mechanical_siege_onager_unpacked.xml
+++ b/binaries/data/mods/public/simulation/templates/units/rome_mechanical_siege_onager_unpacked.xml
@@ -6,7 +6,8 @@
       <MinRange>26.0</MinRange>
       <ProjectileSpeed>37.5</ProjectileSpeed>
       <Gravity>9.81</Gravity>
-      <RepeatTime>6000</RepeatTime>
+      <PrepareTime>3700</PrepareTime>
+      <RepeatTime>5000</RepeatTime>
       <Splash>
         <Shape>Circular</Shape>
         <Range>10</Range>
@@ -42,6 +43,6 @@
     <Range>88</Range>
   </Vision>
   <VisualActor>
-    <Actor>units/romans/siege_onager.xml</Actor>
+    <Actor>units/romans/siege_onager_pivot.xml</Actor>
   </VisualActor>
 </Entity>