For me i’d define worst as the least liked across the entire game, as in there are some maps that for certain playlists have been my least liked experiences, but they play great in many other playlists. These maps I think have the least value across the board.
4v4: Chiron - the only thing it brings to the table is chaotic gameplay, but in a way that’s just unfun to me. Boarding action comes very close.
BTB: Was never too fond of CE BTB tbh.
4v4: Backwash - Imo just doesn’t play anything well at all, even zombies. Tombstone doesn’t replicate what Hang’em did so that’s close.
BTB: Would say Uplift but during the actual H2 era it would be Turf, but since that isn’t a proper BTB map either Relic or Burial Mounds. Not that they’re bad though H2 BTB had a strong line-up.
4v4: Halo 3 had a lot of bad 4v4 maps. Snowbound, Orbital, Assembly, Blackout, Epitaph, Cold Storage, default Sandbox were all weak maps that were more unfun than they were fun imo. The map I barely had fun in was Isolation, horrible map.
BTB: H3 had strong BTB too, I found Avalanche was the worst, easy to back up team to their spawn, on foot gameplay was very one dimensional and vehicular play was disjointed, still had many fun times but it was the weakest map.
4v4: I’m not counting forge maps just developer. In terms of overall gameplay many of the Reach maps get called bad like Swordbase, Boardwalk, Reflection or Powerhouse, but I think all of these maps play most of the playlists really well bar default slayer, which was still ok. High noon is the worst because team snipers is the best thing it probably plays on and still sucks, this is the worst map of the Bungie era, looks nice but plays poorly. Condemned is also a bad map, would be much nicer without the central room, sort of like a large Chillout.
BTB: I didn’t have tons of games on Highlands and they were always pretty meh so that takes it. Spire was weird but still had many great games on it.
4v4: Adrift - a map of tunnels, the central area is the only thing that isn’t a headache, coupled with everyone having a boltshot and ordnance drops with SAW, overshield or damage boost, nope.
BTB: They all sucked, Vortex, Perdition, Exile and Longbow had potential but all lane-y, low invisible ceilings that made airplay unfun, map clutter and infinity settings.
H5: Honestly didn’t play enough to care
4v4: Would say Launch site but I really only play ranked as I dislike pistol / AR starts, so Behemoth.
BTB: I hate this games BTB and I don’t want to play it. From the lanes, vehicle controls, spawn weakness, random vehicle spawns etc. I feel it takes classic BTB and ruins it with the ghosts of H4 BTB and H5 Warzone.