Map	Title	Author	Players
DM-OreMine	Ore Mine	Ola Emil "Istap" Frid	4-12
DM-Organic	Organic	CyberA(rtist) aka Ben Golus	8-16
DM-OrganicDE	Organic	CyberA(rtist) aka Ben Golus	8-16
DM-OrgeCitadel	FROM QUKAE 1 "ORGE CITADEL" E2M2	Redone by Steve [Red_Fist] Quist	2000
DM-Orgus_Facility	Orgus Military Facility	Brian'Bah_Mee'Johnson	4-8
DM-OrientalWilderness	Oriental Wilderness	Ruben (Silver Ibex) Hunt	Unknown
DM-Orion	InSpaceLevel2 SpaceTransporter	Jens"UnrealUndertaker"Schneider	8-14
DM-OrionStar	Orion's Star	Greg ' Falcon Zero ' McKeown	8-16
DM-Orison	Orison	David 'NVerxion' Brancato	2 - 8
DM-Oron	Oron SkySearch Facility	Jared "FrEaKy" Lacey	2
Dm-Oros	DM-Oros	Sarevok	2-4
DM-Ort0900	DM-Ort	C "Das Piratenschiff" P	2 - 4
DM-Orthanc	DM-Torch	Alex West	2 to 16
DM-Orthanc	Orthanc Tower	Alex West CJ "Eliminator" Kent	2 to 16
dm-osiria	Osiria Heaven	Alex [Lok] Dessureault	2-12
DM-Osiris	DM-Osiris	Unknown	Unknown
DM-Osiris	Temple Of Osiris	Rob "Doublez-Down" Collins	3-6
DM-Osiris	Osiris	Gareth 'Ulukai' Spring	2 - 4
DM-Ost-Arena	Ost-Arena	aLm \	1 on 1
DM-Ostburg	Die Ostburg	Walm	2 - 10
DM-Ostburg][	Die Ostburg II	Walm	6 - 12
DM-Osthammer	Der Osthammer	Walm	2 - 4
DM-Ostheim	Ostheim	Walm	4 - 6
DM-Ostwerk	O S T W E R K	Walm	2 - 4
DM-Ostwerk	O S T W E R K	Walm	2 - 4
DM-Ostwerk][	Ostwerk II	Walm	4 - 8
DM-OStyle	OStyle	IVANGRAPHICS	Unknown
DM-OTDarkCastle	OTDarkCastle	[DEU] Tetsuji Usude	2-4
DM-Otero	Otero's Fuckin' House	<<<.F.G.P.>>>	4-16
Dm-Ottagono	Dm-Ottagono	Steve"The^^aster[HPB]"waters	4-8 12 Maximum
DM-Ougoula	Ougoula ti bobofi koutou	Romain 'G.e.c.K.o.o' Verdier	4-8
DM-Ounreal	Cosmétique L'Ounréal	Virgile 'Vile' Bornemann	4 à 16
DM-OurHouse-B3	DM-OurHouse	[FSW] Dilligas	2-16
DM-OurHouse-B4	DM-OurHouse	[FSW] Dilligas	2-16
DM-OurHouse-V1	DM-OurHouse	[FSW] Dilligas	2-16
DM-OurHouse-V2	DM-OurHouse-V2	[FSW] Dilligas	2-16
DM-Out2011	Out	AmpoYrex	2-8
DM-OutbackSniper	Welcome to the outback, i hope you brought your sniper	RJGexplode	10+
DM-OutCome]V[	DM-OutCome]V[	Dr.Pikko	6-12
DM-Outdated	Outdated	-=IKESTRONIC=-	4-12
DM-OutDoor Death	OutDoor Death	Danny Petro	8
DM-OutdoorMayhem	DM-Outdoor Mayhem	\sNiPeR \ShAdO \	4-6
DM-Outland	Outland	Gareth 'Ulukai' Spring	2 - 4
DM-OUTLAWS	OUTLAWS	Mark "SoulStripper" George	2-6
DM-OUTLAWS-WUTC	OUTLAWS	Mark "SoulStripper" George	2-6
DM-Outlook	DM-Outlook	Hobbes	2
DM-OutOfTime	Out Of Time	Rich Davis ([email protected])	4 to 10
DM-Outpost	PlanetAeneisOutpost	Kvak	2-8
DM-Outpost13	The 13th Outpost on Io	Vincent 'Stainless' Clarke	4-8
DM-Outpost13	Outpost 13	Musashi (SoLiD HawK) TAZaki	8-18
DM-Outpost23-UT4	Outpost23	n1v3r (map of UT4)	4-8
DM-Outpost34	Outpost34	FoolsParadise	2-12
DM-Outpost6	Omega6 Outpost	Heiko Dreyer	2-4
DM-Outpost9	DM-Outpost 9	Steve Keene	7-9
Dm-OutpostEridani	Outpost Eridani	Randy Shrader aka RedEye(Co30)	6-12
DM-Outside4ce	Outside4ce	Raven 4ceman	16
DM-OutsideFun	OutsideFun	Raven	Unknown
DM-OutsideWithDawn-B2	OutsideWithDawn	Original: Dawn Knight Edit By: Mutagen!	10
DM-OutWorld	OutWorld	lucifix	6-10
DM-OutWorldII	The OutWorld II	lucifix	7-14
DM-Overflow	Overflow	Doctor Frag	2-8
DM-OvErKiLL][	DM-OvErKiLL][	Unknown	Unknown
DM-Overpass	Overpass	Terry "Key-Vynn" Bodnar	6 to 16
DM-Overpass-T	Overpass	Terry "Key-Vynn" Bodnar	6 to 16
DM-Overseer	Overseer Proving Ground	Muad'dib	2 - 4
DM-Overtaken	The Overtaken Fortress	Bob "Nimbostratus" Harrison	3-10
DM-OverTheWall	Over The Wall	Elroy Jumpertz	2 - 10
DM-OwnRisk	Your Own Risk	Kopruch	5-10
DM-Ozealoth	Ozealoth	Alex [Lok] Dessureault	2-4
DM-Ozymandias	Ozymandias	Chris "Azathoth" Pryor	4 - 8
DM-{OCA}Agugu-Champion	Agugu Arena	Doug 'Atma' Weller	2 - 4
DM_Oneiros_Amphitheater	DM Oneiros Amphitheater	Original: build by Clive Barkers Undying team Edit By: Nikola-DOG-	Unknown
DM_Oneiros_dream	Dm_Oneiros_dream	Nikola -(DOG)- Genyo	Unknown
DmOblinox	Oblinox	IPedii	5 to 10
DmOldCastle	A Old Castle	SoulReaver(marvin)	Unknown
DmOptimal	Dm OptimaL	><Sm><SilenTShadoW	Unknown