UnityCloudBuild上で無理やり圧縮オプションをLZ4に変更する事が出来るか！？ ref: https://qiita.com/neon-izm/items/7ba9e52a5970345aee37

file0.txt

public class Preprocess  : IPreprocessBuild {

    // ビルド前処理
    public void OnPreprocessBuild (UnityEditor.BuildTarget buildTarget, string path)
    {
        if (buildTarget == BuildTarget.Android)
        {
            Debug.Log("[PREPROCESS] find Android Build");
            Console.WriteLine("[PREPROCESS] find Android Build");
            //https://github.com/Unity-Technologies/UnityCsReference/blob/master/Editor/Mono/BuildPlayerWindow.cs#L770
            MethodInfo setCompressionTypeMethodInfo =
                typeof(EditorUserBuildSettings).GetMethod("SetCompressionType",
                    BindingFlags.NonPublic | BindingFlags.Static);

            try
            {
                /* Invokeで実行するとき、staticクラスだったら第一引数はnull
                * 第二引数は普通にpublicなenum でplatform
                * 第三引数が内部定義されたenumなので、該当のint数値を直接突っ込んでいます
                */

                /* 第三引数はこんな感じで定義されています
                namespace UnityEditor
                {
                  internal enum Compression
                  {
                    None = 0,
                    Lz4 = 2,
                    Lz4HC = 3,
                  }
                }
                 */                
                var invoke = setCompressionTypeMethodInfo.Invoke(null, new object[] {BuildTargetGroup.Android, 2});
            }
            catch (Exception e)
            {
                Debug.Log(e);
                Console.WriteLine(e);
                throw;
            }

            MethodInfo getCompressionTypeMethodInfo =
                typeof(EditorUserBuildSettings).GetMethod("GetCompressionType",
                    BindingFlags.NonPublic | BindingFlags.Static);


            var obj = getCompressionTypeMethodInfo.Invoke(null, new object[] {BuildTargetGroup.Android});
            Debug.Log("[REPROCESS] current compression type:" + obj);
            Console.WriteLine("[PREPROCESS] current compression type:" + obj);
        }
    }

    // 実行順
    public int callbackOrder { get {    return 0; } }
}