NHibernate: Mapping multiple classes to the same view - nhibernate

Question

I need to map two different classes to the same view and receive an error that a duplicate mapping exists. Is this possible in NHibernate? If not, can anyone give direction as to how I can solve this mapping problem.
I work with views which are set in stone. One view brings back data needed to split into two classes. The view looks like:
vw_player_points
----------------
Id
GameID
PlayerID
Points
The classes need to be 'player', with a list of games played
select gameid from vw_player_points where playerid = <PlayerID>
And each 'game' needs a list of players and their points:
select playerid, points from vw_player_points where gameid = <GameID>
I've tried table-per-concrete class inheritance aswell as mapping to the same view twice, but have had no joy :(
Here's the 'rough' mappings put into one xml snippet. Notice I also need to map to an interface (which works)
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="DomainModel" namespace="Test">
<class name="IPlayer" abstract="true">
<id name="Id" column="id">
<generator class="assigned"/>
</id>
<union-subclass name="Player" table="vw_player">
<bag name="Games">
<key column="player_id"/>
<one-to-many class="Test.IGame" not-found="ignore"/>
</bag>
</union-subclass>
</class>
<class name="IGame" abstract="true">
<id name="Id" column="game_id">
<generator class="assigned"/>
</id>
<union-subclass name="Game" table="vw_player_points">
<bag name="Points">
<key column="game_id"/>
<one-to-many class="Test.IPlayerPoints" not-found="ignore"/>
</bag>
</union-subclass>
</class>
<class name="IPlayerPoints" abstract="true">
<id name="Id" column="id">
<generator class="assigned"/>
</id>
<union-subclass name="PlayerPoints" table="vw_player_points">
<property not-null="false" name="PlayerId" column="player_id"/>
<property not-null="false" name="Points" column="points"/>
</union-subclass>
</class>
</hibernate-mapping>

Answer 1

It seems impossible to map multiple classes to a single view when using abstract/sub-class mapping of the form:
<class name="I[Entity]" abstract="true">
<union-subclass name="[Entity]">
...
</union-subclass>
</class>
I ended up mapping directly to the concrete classes using the proprty-ref attribute which works correctly:
<class name="Game" table="vw_player_points">
<id name="Id" column="id">
<generator class="hilo"/>
</id>
<property not-null="false" name="GameId" column="gameid"/>
<bag name="Points">
<key column="gameid" property-ref="GameId"/>
<one-to-many class="PlayerPoints" not-found="ignore"/>
</bag>
</class>
<class name="PlayerPoints" table="vw_player_points">
<id name="Id" column="id">
<generator class="hilo"/>
</id>
<property not-null="false" name="PlayerId" column="playerid"/>
<property not-null="false" name="Points" column="points"/>
</class>
Perhaps an 'abstract' sub-mapping type would negate the use of the union-subclass hack mapping to interfaces.