Mannhattan/Foundry/Well-themed King of The Hill map with thematically-appropriate death pits.
Seadog's gimmick is its indoor control point. The building helps segment the map and make it safer for short-range low-mobility classes to navigate, while the roof, death pits, and numerous flanks let everyone else play it like a DM map.
Gadget's Railroad Tracks
The Frontline Pack