public static byte[] removeGuildFromAlliance(MapleGuildAlliance alliance, MapleGuild expelledGuild, boolean expelled) {
            MaplePacketLittleEndianWriter mplew = new MaplePacketLittleEndianWriter();

            mplew.writeShort(SendPacketOpcode.ALLIANCE_OPERATION.getValue());
            mplew.write(16);
            addAllianceInfo(mplew, alliance);
            CWvsContext.GuildPacket.getGuildInfo(mplew, expelledGuild);
            mplew.write(expelled ? 1 : 0);

            return mplew.getPacket();
        }