NVY - Short for Navy = only T1 and navy ships
ADV - Short for Advanced = T1, navy, T2, pirate, T3 (sometimes) + trig and SocT

Open Complex - open, no restrictions or acceleration gate, has a similar defending NPC to large complexes.

Type Capture time Allowed ships NPC defender
Scout 10 min Frigates and smaller Frigate
Small 10 min Destroyers and smaller Destroyer
Medium 15 min Cruisers and smaller Cruiser
Large 15 min Battleships and smaller Battlecruiserv
Open 15 min Unrestricted Battlecruiserv