we would like to use animals as a secondary spawn, as in this example
```
xml
<event name="StaticHeliCrash">
<nominal>5</nominal>
<min>0</min>
<max>0</max>
<lifetime>2100</lifetime>
<restock>0</restock>
<saferadius>1000</saferadius>
<distanceradius>1000</distanceradius>
<cleanupradius>1000</cleanupradius>
<secondary>AnimalBear</secondary>
<flags deletable="1" init_random="0" remove_damaged="0"/>
<position>fixed</position>
<limit>child</limit>
<active>1</active>
<children>
<child lootmax="15" lootmin="10" max="3" min="1" type="Wreck_Mi8_Crashed"/>
<child lootmax="15" lootmin="10" max="3" min="1" type="Wreck_UH1Y"/>
</children>
</event>
```
this will add more possibilities to vanilla events configuration, like spawning a survivor with wolves around, so player will find a corpse surrounded by animals, and things like that.