Manually added the group packets and dataobjects into dev branch because the working_on_groups branch is so old it probably will break stuff.

FFXIVClassic Map Server/packets/send/groups/GroupMembersBeginPacket.cs

@@ -0,0 +1,38 @@
+using FFXIVClassic.Common;
+using FFXIVClassic_Map_Server.actors.group;
+using FFXIVClassic_Map_Server.dataobjects;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FFXIVClassic_Map_Server.packets.send.group
+{
+    class GroupMembersBeginPacket
+    {
+        public const ushort OPCODE = 0x017D;
+        public const uint PACKET_SIZE = 0x40;
+
+        public static SubPacket buildPacket(uint playerActorID, uint locationCode, ulong sequenceId, Group group)
+        {
+            byte[] data = new byte[PACKET_SIZE - 0x20];
+
+            using (MemoryStream mem = new MemoryStream(data))
+            {
+                using (BinaryWriter binWriter = new BinaryWriter(mem))
+                {
+                    //Write List Header
+                    binWriter.Write((UInt64)locationCode);
+                    binWriter.Write((UInt64)sequenceId);
+                    //Write List Info
+                    binWriter.Write((UInt64)group.groupId);
+                    binWriter.Write((UInt32)group.members.Count);
+                }
+            }
+
+            return new SubPacket(OPCODE, playerActorID, playerActorID, data);
+        }
+    }
+}