I can't believe I made an account just to post this. I was planing on testing the Unknown flags at some point but I stopped working on the server altogether years ago. Good luck.
[Flags]
public enum MapFlagType : long
{
None = 0,
PkField = 1L << 0,
ChangeMapDisabled = 1L << 1,
SaveLocationDisabled = 1L << 2,
PlayerKillDisabled = 1L << 3,
Vending = 1L << 4,
TeamDisabled = 1L << 5,
TeleportDisabled = 1L << 6,
GuildWarMap = 1L << 7,
PrisonMap = 1L << 8,
FlyDisabled = 1L << 9,
HouseMap = 1L << 10,
Mining = 1L << 11,
CallNewbieDisable = 1L << 12,
RebornNowEnable = 1L << 13,
NewbieProtect = 1L << 14,
TrainingDisable = 1L << 15,
Unknown16 = 1L << 16,
Unknown17 = 1L << 17,
RideDisable = 1L << 18,
Unknown19 = 1L << 19,
Unknown20 = 1L << 20,
ArenicMap = 1L << 21,
DoublePkMap = 1L << 22,
Unknown23 = 1L << 23,
Unknown24 = 1L << 24,
RaceTrackMap = 1L << 25,
Unknown26 = 1L << 26,
FamilyArenicMap = 1L << 27,
FactionPkMap = 1L << 28,
ElitePkMap = 1L << 29,
Unknown30 = 1L << 30,
Unknown31 = 1L << 31,
TeamPkArenicMap = 1L << 32,
Unknown33 = 1L << 33,
Unknown34 = 1L << 34,
Unknown35 = 1L << 35,
Unknown36 = 1L << 36,
TeamArenaMap = 1L << 37,
Unknown38 = 1L << 38,
TeamPopPkMap = 1L << 39,
AutoHangUpDisable = 1L << 40,
Unknown41 = 1L << 41,
Unknown42 = 1L << 42,
Unknown43 = 1L << 43,
ForbidCampMap = 1L << 44,
GoldenLeagueMap = 1L << 45,
JiangHuMap = 1L << 46,
Unknown47 = 1L << 47,
Unknown48 = 1L << 48,
Unknown49 = 1L << 49,
UseItemDisabled = 1L << 50,
ReviveDisabled = 1L << 51,
GarmentDisabled = 1L << 52,
WeaponPassiveDisabled = 1L << 53,
StaminaCostDisabled = 1L << 54
}