I sincerely think those maps worth to be a part of your collection. Of course, this list is based on my point of view from what I consider to be the best. So you may like them or not but if you didn’t already played them, they worth checking out. Some of them are available only after you install a bonus pack like the CBP1, Flag pack 2004 (FP2) and such. A lot of them are available on BU forums, Epic forums, Mapraider, etc. I mention the last version in case you found the map somewhere and wonder what is the last version.

Description: Game type, map title, last known version, bonus pack (if coming from)

AS : Assault
BR : Bombing run
CDOM : Classic domination
CTF : Capture the flag
DM : Deathmatch
DOM : Domination
DDOM : Double domination
JB : Jailbreak
ONS : Onslaught
RO : Red Orchestra
VCTF : Vehicle capture the flag
VDOM : Vehicle domination
XMP : Unreal Tournament Expanded Multiplayer (UT: XMP)

AS-BlazingChase, 1.0
AS-Confexia, 1.0
AS-Damnation, 1.0
AS-HighRise, 1.0
AS-InvasionOfAcatana, 1.0, Epic mega pack
AS-IslandStrike, 1.0, UCMP3
AS-JumpShipX, 1.0, Epic mega pack
AS-Liberate, 1.0
AS-MissileSilo, 1.1
AS-Osaka, 1.0
AS-Outback, 1.0, Epic mega pack
AS-SubRosa, 1.0, Epic mega pack
AS-Thrust, 1.0, Epic mega pack
AS-Utopia, 1.0
AS-Vindication, 1.0
BR-2on2-Speed fire, 2.0
BR-Aquarius, 1.0, CBP2 vol. 1
BR-Bahera, 1.0, CBP2 vol. 2
BR-BreakLimit, 1.0, CBP1
BR-Sublimity, 1.0
BR-VauxHall, 1.0
CDOM-1on1-Isolation, 1.0, CD1-2MP
CDOM-Anguish, 1.0, CD1-2MP
CDOM-ArcaneTemple, 1.0, CD1-2MP
CDOM-Asbestos, 1.0, CD1-2MP
CDOM-Cidom, 1.0, CD1-2MP
CDOM-Cinder, 1.0, CD1-2MP
CDOM-Condemned, 1.0, CD1-2MP
CDOM-Core, 1.0, CD1-2MP
CDOM-Cryptic, 1.0, CD1-2MP
CDOM-Deck17, 1.0, CD1-2MP
CDOM-DesertIsle, 1.0, CD1-2MP
CDOM-Dissipate, 1.0, CD1-2MP
CDOM-Ghardhen, 1.0, CD1-2MP
CDOM-Grendelkeep, 1.0, CD1-2MP
CDOM-HellFactory, 1.0, CD1-2MP
CDOM-Lament, 1.0, CD1-2MP
CDOM-Malevolence, 1.0, CD1-2MP
CDOM-Metallurgy, 1.0, CD1-2MP
CDOM-Olden, 1.0, CD1-2MP
CDOM-Sesmar, 1.0, CD1-2MP
CDOM-Shrapnel, 1.0, CD1-2MP
CTF-1on1-BiteOfTheViper, 1.0
CTF-1on1-Xerosis, 1.0
CTF-71, 1.0
CTF-Ages, 1.0, FP2
CTF-Aithanarid, 1.0, UCMP
CTF-Altract , 1.0
CTF-Anfractuous 2, 1.0
CTF-AquaticaSubmarinalRefuelStation, 1.0, UCMP
CTF-Archanastre, 1.0
CTF-Avali, 1.2
CTF-Bahera, 1.0, CBP2 vol. 2
CTF-Betrayal, 1.0, CBP1
CTF-Botanic, 1.0, CBP2 vol. 2
CTF-BraveNewWorld, 1.0
CTF-Campgrounds2, 1.0
CTF-Canal, 1.0
CTF-CannonFodder2, 1.0b
CTF-ColdFront SE, 1.0
CTF-Concentrate, 1.0, Epic mega pack
CTF-Confrontation, 1.0
CTF-Contiguity, 1.0
CTF-Coret classic, 1.0
CTF-Dana, 1.0
CTF-DecaneCaldera, 1.0, UCMP
CTF-Deep, 1.0, CBP2 vol. 1
CTF-DeepSprinta, 1.0
CTF-Divergence, 1.0
CTF-EpicBoy classic, 1.0
CTF-EternalCaves classic, 1.0
CTF-Ferris, 1.0, CBP1
CTF-DyingHonour, 1.0
CTF-Fragtion, 1.0
CTF-Gazpacho, 1.0, CBP2 vol. 1
CTF-Gladius, 1.0
CTF-Goliath, 1.0
CTF-Gralada, 1.0
CTF-Grizzled, 1.0, FP2
CTF-Hydro64, 1.0
CTF-Iron2, 1.0
CTF-Kernel, 1.0
CTF-JunglePassLaboratories, 1.0, FP2
CTF-LavaGiant classic, 3.0
CTF-Lygosynthesis, Beta 4
CTF-Magma, 1.0
CTF-Maul2005 CE, 1.0
CTF-Mechanization-zen, 1.0
CTF-MobiusConcourse, 1.0
CTF-Naelir, 1.0
CTF-Niven2051 classic, 1.1
CTF-NuFactor, 1.0
CTF-Opposite, 1.1
CTF-Orodruin, 1.1
CTF-OtherWorld2007, 2.0
CTF-PhaseShift, 1.0
CTF-PineRidge, 1.0
CTF-PistolaBattleGrounds, 1.0, Epic mega pack
CTF-Rail, 1.0
CTF-Rankin, 0.2d, FP2
CTF-Rav4, 1.0
CTF-Retribution, 1.0
CTF-RustedHulk, build # 117
CTF-Scafander, 1.0
CTF-Semiramis – The hanging gardens of Babylon, 1.0
CTF-Skorbut, 1.0, CBP2 vol. 1
CTF-Sucellus, 1.0
CTF-Suri-V, build # 151
CTF-Talya, 1.0, UCMP4
CTF-Techdream, 1.0, CBP1
CTF-TempleOfAedes, 1.3
CTF-TheAddienEstateDwy, 3.0
CTF-TheDecadence, 1.0, CBP2 vol. 1
CTF-TheIronGauntlet classic, 1.0, FP2
CTF-UnderConstruction, 1.0
CTF-Virility, 1.0, UCMP4
CTF-Zittarion, 0.5 FP2
DM-1on1-Aerowalk, 1.0
DM-1on1-Alpu3, 1.0, 1on1-pack
DM-1on1-Alzonia, 1.0
DM-1on1-AugustNoon, 2.0, CBP1
DM-1on1-Backspace, 1.0
DM-1on1-Crampage, 1.0
DM-1on1-Derelict, 1.0, UCMP
DM-1on1-Finale, 1.0, CBP1
DM-1on1-Glacialis, 1.0
DM-1on1-Glorian, 1.0, UCMP3
DM-1on1-IdrusDue, 1.0, 1on1-pack
DM-1on1-Ilarnek, 1.0
DM-1on1-Incuvasion, 1.0
DM-1on1-Kadath, 1.0, CBP2 vol. 1
DM-1on1-KeepingKhrono, 1.0, CBP2 vol. 1
DM-1on1-Lacrima, 1.0
DM-1on1-Meitak’sArena, 1.0, CBP2 vol. 2
DM-1on1-Nagem, 1.0
DM-1on1-Painkiller, 1.0
DM-1on1-Perversion, 1.0
DM-1on1-Roboto, 1.3
DM-1on1-Roughinery, 1.0
DM-1on1-Sae, 1.0, 1on1-pack
DM-1on1-Samurai, 1.1
DM-1on1-SharpEdged, 1.1
DM-1on1-Solitude, 1.0
DM-1on1-Tangora, 1.0, 1on1-pack
DM-1on1-TheVeryEndOfYou, 1.0
DM-2019-XS (Demo), 1.0
DM-Achilles, 1.0, CBP2 vol. 1
DM-Aeris, 1.0
DM-Ages, 1.0
DM-AkBal, 1.0
DM-Algol, 1.0
DM-Altena, 1.0
DM-Altitude, 1.0, UCMP3
DM-Anschar, 1.0
DM-Antediluvian, 1.0
DM-Anukhet, 1.0
DM-ArcaneTemple classic, 1.0
DM-Archipalego, 1.0, CBP2 vol. 1
DM-Argel, 1.0
DM-Arkanos, 1.0, CBP1
DM-Argibi, 1.0
DM-Aristocracy, 2.0
DM-Ascension’sDay, 1.0
DM-Atowee, 1.0
DM-Azure2k6, 3.0
DM-Azures, 1.0, CBP2 vol. 1
DM-Barricade classic, 1.0
DM-BlackHawkDown, 1.0
DM-Blatha 2, 1.0
DM-BlackJackal, 1.0, CBP1
DM-BlindSuffering, 1.0
DM-BlizzzXL, 1.0
DM-BloodRun, 1.0, UCMP
DM-Buliwyf, 1.0, CBP2 vol. 2
DM-Campgrounds, 1.1
DM-CartwrightHall, 1.0
DM-Cenotaph, 1.0
DM-Clarity, 2.0
DM-ColdCity, 1.0
DM-Constructor classic, 1.0
DM-Contrived, 1.0
DM-Conveyor, 1.0
DM-Contrast, 1.0, UCMP
DM-Dante, 1.0
DM-Deadbolt, 1.0
DM-Decapacitate, 1.1
DM-Doom1level1, 1.0
DM-Downgrave, 1.0, CBP1
DM-Drakonis, 1.0, CBP2 vol. 2
DM-Drathi, 1.0
DM-Dust, 0.5
DM-Echo, 1.0
DM-Elegance, 1.0, CBP1
DM-Elucidation, 1.0, UCMP4
DM-Emperor, 1.0, CBP1
DM-Entropic, 1.0
DM-EvolutionsInLiquid, 2.0
DM-FairyLand, 1.0
DM-Forbidden, 1.0
DM-ForbiddenTemple, 2.1
DM-Fortress, 1.0
DM-FractionaryX2, 1.0
DM-FreneticBurn, 1.0
DM-Gantham, 1.0, UCMP3
DM-Getherto, 1.0
DM-Giero, 1.0
DM-GillesDeLavalDeRais, 1.0
DM-Goatswood SE (Playable version), 1.0
DM-GoldenDawn, 1.0, CBP1
DM-Goose, 1.0
DM-Gossamer, 1.0
DM-Gothic classic, 1.0
DM-Griffin, 1.1, CBP2 vol. 1
DM-Grinder classic, 1.0
DM-Grotto, 1.0
DM-Hardcore, 1.0
DM-HealPod, 1.0
DM-Hostile, 1.1
DM-iFullTower, 1.2
DM-Imber, 1.0
DM-ImMortalis, 1.0, UCMP
DM-Incalescence, 1.0
DM-Ironic, 1.0
DM-Isis, 5.0
DM-Kandhar, 3.0
DM-Kerosene, 1.0, CBP2 vol. 2
DM-KillBillyBarn, 1.0, CBP2 vol. 2
DM-Koma, 1.0, CBP2 vol. 2
DM-KroujKran, 1.0, CBP2 vol. 2
DM-Kurumi, 1.0
DM-LastCrusader, 1.0
DM-LiandriCentralCore classic, 2.0
DM-Mako, 1.0
DM-Malevolence2007, 2.0
DM-Mania, 1.0, UCMP4
DM-Masurao, 1.0, CBP2 vol. 1
DM-MetalHell, 1.0
DM-MeteorStorm, 1.0
DM-MindGames 2, 1.0
DM-Morrigan, 1.0
DM-Mosaic, 1.0
DM-Mystiq RE, 1.0
DM-Nao, 1.0
DM-Naquadah, 1.0
DM-Neandertalus, 1.0, CBP1
DM-Nefarious, 2.0
DM-Niflheim, 1.0, CBP2 vol. 2
DM-Nirvana, 3.0
DM-NoProtection, 1.0
DM-NYCTest1920 (Demo), 1.1
DM-NyX, 1.0
DM-Oblivion classic, 1.0
DM-Obsidian, 1.0
DM-Omnipotents2006, 1.0
DM-Ougaldwin, 1.0, CBP1
DM-Paganda, 1.0
DM-PerfectDarkTemple, 1.0
DM-Phoenix, 1.0
DM-PleasantValley, 1.0, UCMP
DM-PolarStationZeto, 1.0
DM-PressurePowerPlant classic, 1.0
DM-Propaganda, 1.0, UCMP4
DM-Prophecy, 1.0
DM-Protection, 1.0
DM-Quench, 1.0
DM-RancidMetal, 1.0, UCMP
DM-Rankin, 1.0
DM-Reconstruct, 1.0, CBP2 vol. 1
DM-RecremKram, 1.0
DM-Redkin, 1.0
DM-Refined, 1.2
DM-RetroGamer, 2.1
DM-Revolution, 1.0
DM-Romoon, 1.0
DM-Rusing, 1.0
DM-Sacrifice, 1.0
DM-Saiko, 1.0
DM-Sanctum 2 SE, 1.0
DM-Sarigono, 1.0
DM-Schreiber, 2.0
DM-Semerkhet, 1.0
DM-Serenissima, 1.0
DM-Shanghai, 1.0
DM-Shifter, 1.0, CBP1
DM-Shrapnel classic, 1.0
DM-Sirea, 1.1
DM-Soma, 2.0
DM-SpaceJunk, 1.0
DM-SpaceNoxx, 1.0
DM-Speos, 1.0, UCMP4
DM-Squall, 1.0
DM-StoltyFactory, 1.0
DM-Summit, 1.0, CBP2 vol. 1
DM-Sunshine, 1.0
DM-SweetDeath, 1.0
DM-Tantal, 1.1
DM-TelMecoMex, 1.0, CBP2 vol. 1
DM-TemotuIsland, 1.0
DM-Tempest, 1.0, CBP2 vol. 2
DM-Tenshi, 1.0
DM-TensileSteel, 1.0, CBP2 vol. 2
DM-Terror, 2.0
DM-TheCourtyardsOfCalandras, 1.0, Epic mega pack
DM-TheDeck, 1.0
DM-TheGoopGodCultRefugium, 1.0, Epic mega pack
DM-TheLongestYard, 1.0
DM-TheMeatGrinder, 1.0
DM-TheOnion, 1.0
DM-ThePeakMonastery classic, 1.0
DM-ThePits, 1.0, UCMP
DM-ThePod, 1.0
DM-TheWaterfall, 1.0
DM-Tintagel, 1.0c
DM-Torkenstein, 1.0, CBP2 vol. 2
DM-Tribulation, 1.0
DM-Turbine classic – Tourney Edition, 1.0
DM-Tydal, 1.0, CBP2 vol. 2
DM-Urotsukidoji, 1.0
DM-Waisten, 2.0
DM-WarmBody, 1.0
DM-Wretched, 1.0
DM-Xanadu, 1.0, UCMP
DM-Yro, 1.0
DM-Zoetic, 1.0
DOM-1on1-Alpha, 1.0
DOM-Aphrodite, 1.0, CBP1
DOM-BloodFued, 1.0
DOM-Cerebral, 1.0, UCMP
DOM-Cidom classic, 1.0
DOM-Cinder classic, 1.0
DOM-Elhazad, 1.0
DOM-EnchantedShrine, 1.0
DOM-Gerroid, 1.0, CBP2 vol. 2
DOM-Hathor, 1.0, CBP1
DOM-HighDale, 1.0
DOM-MayanRuins, 1.0
DOM-Meskhenet, 1.0
DOM-Summit, 1.0, CBP2 vol. 1
DOM-Verde, 1.0, CBP1
Goatswood (Walkabout version), 1.0
JB-AbandonedHeights, 2.1
JB-Alarscia, 1.0
JB-Arboria, 2.0, JB 2004 CMP
JB-Arlon, 1.0, JB 2004 CMP
JB-Aswan, 1.0, JB 2004 CMP
JB-Atlantis, 2.0
JB-BabylonTemple, 2.0
JB-BasmmaInterrogationFacility, 2.0, JB 2004 CMP
JB-BattlestarGalactica, 1.0
JB-CastleBreak, 1.0, JB 2004 CMP
JB-ChromeGold, 1.0
JB-Collateral, 1.0
JB-Conduit, 1.0, JB 2004 CMP
JB-Coralation, 1.0
JB-Cosmos, 1.0, JB 2004 CMP
JB-Ra’sTempleEgypt, 1.0
JB-EpicBoy classic, 1.0.1
JB-EternalCaves classic, 1.0, JB 2004 CMP
JB-Fragtion 2, 1.0
JB-Frostbite, 1.0, JB 2004 CMP
JB-Furia, 1.0
JB-GravityGateway, 1.0
JB-Grudge, 2.0, JB 2004 CMP
JB-IndustrialRage2, 1.0, JB 2004 CMP
JB-LavaCaverns, 1.0, JB 2004 CMP
JB-MoonCraters, 1.0, JB 2004 CMP
JB-NoSenseOfReality, 1.0
JB-OasisOfLife, 1.0, JB 2004 CMP
JB-Poseidon, 1.0, JB 2004 CMP
JB-Relic, 1.0
JB-SavoIsland, 1.0, JB 2004 CMP
JB-ScorchedEarth, 1.0
JB-Skaraphat, 1.0
JB-Snifam, 1.0, JB 2004 CMP
JB-Solamander, 2.0
JB-SubZero, 1.0, JB 2004 CMP
JB-TheAddienEstateDwy, 1.0, JB 2004 CMP
JB-TheIronGauntlet classic, 1.0, JB 2004 CMP
ONS-ABC ECE, 1.0, UCMP
ONS-Adara, 1.0, Epic mega pack
ONS-Ahebban, 1.0
ONS-AlenjaForest SE ECE, 1.0
ONS-ArajaMountains, 1.0
ONS-ArgentoDelAlma, 1.0, CBP2 vol. 1
ONS-Ascendancy ECE, 1.0
ONS-BigDam, 1.3
ONS-Bramideon SE, 1.0
ONS-Brassed, 1.0, CBP2 vol. 2
ONS-ChainsIsle 2, 1.0
ONS-Dinora-32p, 1.0
ONS-Dissonex, 1.0
ONS-Dreamus2 SE, 2.5
ONS-DryIce ECE-32p, 1.0
ONS-Echo ECE, 1.02
ONS-FalloutIsland, 1.0
ONS-Flurry, 1.0
ONS-Glanum, 1.0
ONS-Genesis4000OilComplex, 1.0
ONS-GritCainsLairRegulars, 2.1
ONS-Highlands, 1.0
ONS-IcarusPlaza, 1.0
ONS-IslandHop, 1.0, Epic mega pack
ONS-Kingdom, 1.0
ONS-LigeiaOmegaReactor, 1.0
ONS-LonesomeGlen SE, 1.0
ONS-Maelstrom, 1.0
ONS-MaelstromNoVehicules, 1.0
ONS-MeadowLand-32p, 1.0
ONS-MidWorld, 1.0
ONS-Mirage, 1.0, CBP2 vol. 1
ONS-Mothership, 1.0
ONS-Nevermore ECE, 1.0
ONS-Outback, 1.0
ONS-PaintedDesert ECE, 1.0
ONS-Paludosus, 1.0
ONS-Panalesh SE, 1.0
ONS-Pasargadae, 1.0, CBP2 vol. 2
ONS-Perimeter, 1.0
ONS-Pipeline, 1.3
ONS-Quarantine, 1.0
ONS-Ranger SE MSU, 1.0
ONS-RoadRage, 1.0
ONS-Ruins, 1.0
ONS-SandStone, 1.0
ONS-SandStone NE, 1.0
ONS-Slate SE, 1.0
ONS-StormyWeather, 1.0
ONS-Stratum, 1.0
ONS-SunTzu ECE, 1.0
ONS-Terror, 1.0
ONS-TheApocalypse, 1.0
ONS-TheIguazuFalls, 1.0
ONS-TheIsleOfRapanui, 1.0
ONS-ToonCountry, 3.8
ONS-Torlan-32p, 1.0
ONS-TorlanRainstorm, 1.0
ONS-Tricky, 1.0, Epic mega pack
ONS-Tropica, 1.0, CBP2 vol. 1
ONS-Tropic-32p, 1.0
ONS-TropicNightFall-32p, 1.0
ONS-Twilight, 1.0
ONS-Urban, 1.0, Epic mega pack
ONS-Valarna ECE, 1.1
ONS-VolcanoHigh , 2.0
ONS-Yorda, 1.0, CBP2 vol. 2
RO-Bahnhof, 1.0
VCTF-Arctika, 1.0
VCTF-Ascendancy ECE, 1.0
VDOM-DesertCombat, 2.0, CD1-2MP
XMP-Alcazar, 1.0, UT: XMP
XMP-CrashFlight, 1.0, UT: XMP
XMP-DragonFly, 1.0, UT: XMP
XMP-Fox, 1.0, UT: XMP
XMP-Garden, 1.0, UT: XMP
XMP-Kaminari, 1.0, UT: XMP
XMP-LowLands, 1.0, UT: XMP
XMP-MurkyWoods, 1.0, UT: XMP
XMP-NaKoja, 1.0, UT: XMP
XMP-Rampant, 1.0, UT: XMP
XMP-Sirocco, 1.0, UT: XMP
XMP-SunsetBeach, 1.0, UT: XMP
XMP-ValleyOfApes, 1.0, UT: XMP
XMP-WonderWoods, 1.0, UT: XMP