PlayerHitLogger.cs

using UnityEngine;
using System.Collections;

[Script(ScriptRole.ClientOwner)]
public class PlayerHitLogger : MonoBehaviour
{
    void OnHit(HitInfo hit)
    {
        GameObject shooter = null;

        if (hit.Details.HasChild("Shooter"))
            shooter = hit.Details["Shooter"].GameObjectValue;

        var trueSourceObject = shooter ?? hit.SourceObject;

        if (trueSourceObject != null)
            Study.LogEvent(VitalsLogEvent.HitBy, Game.GetPlayerNickname(Sync.GetOwner(trueSourceObject)), hit.SourceObject.name, hit.Value);
    }
}