Here is a small list of maps approved for use:

(yes this list is biased towards my maps ~Beherith)

A level:

• Altair Crossing v2
• Colorado v1
• Sacrifice v1
• Tropical v2
• Blindside v1
• Industrial Revolution v1
• Tabula v4
• FolsomDamDeluxe
• Talus
• Tundra
• Desert Triad
• Iceland v1
• Moor v4
• Calamity V1
• Hotlips Redux

B level:

• Koom Gorge/Koom Valley
• Mescaline
• Gehenna Rising
• Rage v1
• Ravaged v1
• Mescaline v1
• Altored Divide Remake v3
• Apophis V2
• Valles Marineris (artturi's version)

C Level: (needing minor rework)

• DSD
• Magic Forest v1
• Speedmetal (yes this is a valid map, and a lot of people, especially newbies like it)
• All of smoth's maps.

D Level: (needing major rework)

• Small supreme battlefield
• Comet Catcher (rework almost done)