Projectile loaded on roman ballista

This was SVN commit r10887.

binaries/data/mods/public/art/actors/units/romans/siege_rock.xml

@@ -5,12 +5,12 @@
     <variant frequency="100" name="rome ballista">
       <animations> 
         <animation file="mechanical/rome_ballista_idle.dae" name="Idle" speed="100"/>
-        <animation event="0.8" file="mechanical/rome_ballista_atttack.dae" name="Melee" speed="100"/>
+        <animation event="0.8" load="0.65" file="mechanical/rome_ballista_atttack.dae" name="Melee" speed="100"/>
       </animations> 
       <mesh>structural/rome_ballista.dae</mesh>
       <texture>structural/rome_ballista.png</texture>
       <props>
-        <prop actor="props/units/weapons/rock_flaming.xml" attachpoint="loaded-projectile"/>
+        <prop actor="props/units/weapons/rock.xml" attachpoint="loaded-projectile"/>
         <prop actor="props/units/weapons/rock_flaming.xml" attachpoint="projectile"/>
       </props>
     </variant>