Almost done, just something wrong...

while (true)
            {
                MemoryEdit.Open(); //Open Process
                IntPtr pWeaponMgr = IntPtr.Add(CShell, 0xE36A2C);

                for (int i = 0; i < 1000; i++)
                {
                    IntPtr CurrentWeapon = IntPtr.Add(pWeaponMgr, 4 * i);

                     int bytesWritten;

                     int Value = 20; 
                     byte[] bValue = BitConverter.GetBytes(Value);

                    MemoryEdit.Write(IntPtr.Add(pWeaponMgr, 0xC3C), bValue, out bytesWritten);

                     if (bytesWritten != bValue.Length)
                         Console.WriteLine("There was an error at writing");
                }

                MemoryEdit.CloseHandle(); //Close Memory Handle
                Thread.Sleep(5000);
            }