my unfinished eboot builder C#

using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Diagnostics;


namespace test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
       // private System.IO.BinaryWriter BW;
        OpenFileDialog OFD = new OpenFileDialog();
        #region Offsets
        public static class Offsets
        {
            public static uint
                AdvancedUav = 0x130a3a,
                RedBoxes = 0x139134,
                GlowPlayers = 0x15ab63,
                NoRecoil = 0x6b65c0,
                LaserSight = 0x51dde7,
                UAV = 0x23538f8,
                Antiban1 = 0x6f0adc,
                Antiban2 = 0x6ef4d8,
                Antiban3 = 0x6ef164,
                Antiban4 = 0x6f0ad4,
                Antiban5 = 0x6f0ad8,
                Antiban6 = 0x6e41e8;
            // need to do some more
        }
        #endregion
        #region Bytes
        public static class Bytes
        {
            public static byte[] AdvancedUav = new byte[] { 0x01 };
            public static byte[] RedBoxes = new byte[] { 0x60, 0x00, 0x00, 0x00 };
            public static byte[] GlowPlayers = new byte[] { 0xf7 };
            public static byte[] NoRecoil = new byte[] { 0x60, 0x00, 0x00, 0x00 };
            public static byte[] LaserSight = new byte[] { 0x01 };
            public static byte[] UAV = new byte[] { 0x01 };
            public static byte[] Antiban1 = new byte[] { 0x30, 0xA5 };
            public static byte[] Antiban2 = new byte[] { 0x39 };
            public static byte[] Antiban3 = new byte[] { 0x38, 0x60 };
            public static byte[] Antiban4 = new byte[] { 0x38, 0xC0 };
            public static byte[] Antiban5 = new byte[] { 0x30, 0xE7 };
            public static byte[] Antiban6 = new byte[] { 0x3B, 160 };
            // need to do more
        }
        #endregion
        #region Program
        private void openELFToolStripMenuItem_Click(object sender, EventArgs e)
        {
            OFD.Filter = ".ELF Files|* .elf";
            if (OFD.ShowDialog() == DialogResult.OK)
            {
                if (OFD.SafeFileName == "default_mp.elf")
                {
                    MessageBox.Show("default_mp.elf Successfully loaded", "Notice", MessageBoxButtons.OK);
                    toolStripLabel1.Text = ".elf loaded !";
                }
                else
                {
                    MessageBox.Show("You're missing files needed to use this program !", "Error", MessageBoxButtons.OK);
                }
            }
            //
        }
        public void DoWork(uint offset, byte[] bytes)
        {
            BinaryWriter bw = new BinaryWriter(File.OpenWrite(OFD.FileName));
            // bw.Seek((int)(offset), System.IO.SeekOrigin.Begin);
            Array.Reverse(bytes);
            bw.BaseStream.Position = offset;
            bw.Write(bytes);
            bw.Close();
        }
        private void buildEBOOTToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Cursor.Current = Cursors.WaitCursor;
            if (File.Exists("default_mp.elf.backup"))
            {
                File.Delete("default_mp.elf.backup");
            }
            if (!File.Exists("default_mp.elf"))
            {
                MessageBox.Show("default_mp.elf not found!", "Error", MessageBoxButtons.OK);
            }
            else
            {
                File.Copy("default_mp.elf", "default_mp.elf.backup");
            }

            if (File.Exists("EBOOT.BIN"))
            {
                if (File.Exists("EBOOT.BIN.backup"))
                {
                    File.Delete("EBOOT.BIN.backup");
                }
                else
                {
                    File.Copy("EBOOT.BIN", "EBOOT.BIN.backup");
                }
            }
            if (AdvUavCheck.Checked)
            {
                DoWork(Offsets.AdvancedUav, Bytes.AdvancedUav);
            }
            if (NoRecoilCheck.Checked)
            {
                DoWork(Offsets.NoRecoil, Bytes.NoRecoil);
            }
            if (LaserSightCheck.Checked)
            {
                DoWork(Offsets.LaserSight, Bytes.LaserSight);
            }
            if (UavCheck.Checked)
            {
                DoWork(Offsets.UAV, Bytes.UAV);
            }
            if (AntibanCheck.Checked)
            {
                DoWork(Offsets.Antiban1, Bytes.Antiban1);
                DoWork(Offsets.Antiban2, Bytes.Antiban2);
                DoWork(Offsets.Antiban3, Bytes.Antiban3);
                DoWork(Offsets.Antiban4, Bytes.Antiban4);
                DoWork(Offsets.Antiban5, Bytes.Antiban5);
                DoWork(Offsets.Antiban6, Bytes.Antiban6);
            }
            if (GlowPlayersCheck.Checked)
            {
                DoWork(Offsets.GlowPlayers, Bytes.GlowPlayers);
            }
            // do more
            if (File.Exists("Debug.bat"))
            {
                System.Threading.Thread loading = new System.Threading.Thread(new System.Threading.ThreadStart(Thread));
                Process P = new Process();
                P.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                P.StartInfo.FileName = "Debug.bat";
                P.Start();
                MessageBox.Show("EBOOT successfully created", "Notice", MessageBoxButtons.OK);
                toolStripLabel1.Text = "EBOOT Built !";
            }
            else
            {
                MessageBox.Show("You're missing files needed to use this program !!", "Error", MessageBoxButtons.OK);
            }
        }
        public static void Thread() { }


        #endregion
    }
}