Heres some maps i would like to suggest for DM:
StormWitchDont know what to say about this one, theres beacon and galion.
Type-Outdoor, Historical.
Size-Medium
LostPlaygroundHave nice atmosphere, plays well with Ballistic Weapons.
Type-Outdoor, Urban.
Size-Small
LacrimaNice for 2vs2 games and melee weapon fights.
Type-Indoor.
Size-Very Small
UrbanBayAgain plays well with Ballistic Weapons.
Type-Outdoor, Urban.
Size-Medium
PueblinCaninoAnd again plays well with Ballistic Weapons.
Type-Outdoor, Urban.
Size-Medium
HarborTwoNice map with lots of cover.
Type-Outdoor, Industrial.
Size-Large
WareHouseNice map, with little maze element.
Type-Indoor, Industrial.
Size-Large
ZeitkindPerfect map for snipers, suggesting 5 players atleast.
Type-Outdoor, Urban.
Size-Insanely Hudge
EgoVery cool map for fast paced action.
Type-Indoor, Futuristic.
Size-Very Small
SiberianStraitMethinks its good for invasion or Ballistic Deathmatch.
Type-Outdoor, Industrial.
Size-Large
HelmzdeepThis picture is'nt from game, but this map is based on it and its quite good.
Type-Outdoor, Historical.
Size-Small
HelmzdeepMelee weapons arena Waaaaaggghhh!!!
Type-Outdoor, Historical.
Size-Medium
List will be updated as new quality maps will be found.