@Aurora11
I'm not sure you can (without the use of a script anyway), but maybe play with some of these values & figure out exactly what they do (only thing I could find on tires being shot):
vehicleaitasks.ymt:
...\mods\update\update.rpf\x64\data\tune\vehicleaitasks.ymt
<Item type="CTaskVehicleShotTire__Tunables">
<Name>CTaskVehicleShotTire</Name>
<MaxTimeInSwerve value="1.50000000"/>
<MinSpeedInSwerve value="0.10000000"/>
<MinSpeedToApplyTorque value="20.00000000"/>
<MaxDotToApplyTorque value="0.85000000"/>
<TorqueMultiplier value="1.00000000"/>
</Item>
Can't see a way to use file edits to identify left or right tire shot, but you might be able to take some of the values from 'ctaskvehicledeaddriver' (also in vehicleaitasks.ymt):
<Item type="CTaskVehicleDeadDriver__Tunables">
<Name>ctaskvehicledeaddriver</Name>
<SwerveTime value="8.0" />
<SteerAngleControl>SAC_Randomize</SteerAngleControl> <!-- randomize left & right -->
<MinSteerAngle value="-0.5" />
<MaxSteerAngle value="0.5" />
<ThrottleControl>TC_Randomize</ThrottleControl>
<MinThrottle value="0.1" />
<MaxThrottle value="1.0" />
<BrakeControl>BC_Randomize</BrakeControl>
<MinBrake value="0.0" />
<MaxBrake value="0.095" />
<HandBrakeControl>HBC_Retain</HandBrakeControl>
</Item>
& apply them to 'CTaskVehicleShotTire' to at least randomize the occurrence of whether the vehicle turns left or right. That might work.
Example:
<Item type="CTaskVehicleShotTire__Tunables">
<Name>CTaskVehicleShotTire</Name>
<MaxTimeInSwerve value="1.50000000"/>
<MinSpeedInSwerve value="0.10000000"/>
<MinSpeedToApplyTorque value="20.00000000"/>
<MaxDotToApplyTorque value="0.85000000"/>
<TorqueMultiplier value="1.00000000"/>
<SteerAngleControl>SAC_Randomize</SteerAngleControl> <!-- randomize left & right added here with min/max values below -->
<MinSteerAngle value="-0.5" />
<MaxSteerAngle value="0.5" />
</Item>