Cannot place KActorSpawnable - UnrealScript

I hope someone here can help me, i been trying to create an placeable actor tha开发者_StackOverflow中文版t will be player controller, but when I try to add it via the "Actor Classes" windows, there is nothing there.

class BallBall extends KActorSpawnable
    placeable;

defaultproperties
{
    Begin Object Name=StaticMeshComponent0
        StaticMesh=StaticMesh'EngineMeshes.Sphere'
        bNotifyRigidBodyCollision=true
        HiddenGame=TRUE
        ScriptRigidBodyCollisionThreshold=0.001
        LightingChannels=(Dynamic=TRUE)
        DepthPriorityGroup=SDPG_Foreground
    End Object
}

I'm really deseperate with this, any help really apreciated. Thanks in advance.

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Solved my own question, looks like my class was correct, i was just searching int the wrong place, i though i would be located directly down Actor, but it was located under Actor, -> DynamicSMActor -> KActor -> KActorSpawnable -> BallBall