...Anyone any tips or advice for huge maps? ...
The first tip is to determine what kind of victory condition you are playing for?
Since I'm well-versed on Histographic Victories (Viz. High Score), these would be some of your general considerations (at warlord level) [Check out Games at CFC Hall Of Fame
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1. Good start position (grass cows, fresh water)
2. Get to Republic government ASAP
3. Get to the Domination Limit ASAP
4. Get to Replaceable Parts ASAP. (For faster workers & Civil Engineers). No need to research beyond Ecology (for MT)
5. At Warlord, Cavalry is more than enough muscle to eliminate all-but-1 of the AI's. Don't build defensive units.
6. On a Huge Map, go to the max city limit of 512.
7. Build hundreds of workers and dozens of Galleys/Caravels/Galleons to transport Settlers/Workers/Horsemen/Cavalry.
8. Build many coastal cities to take advantage of Sea tiles.
9. The generalized build-sequence is Settler/Worker/Aqueduct/Temple/Marketplace/Harbor/Hospital/Granary/Courthouse/Police Station/Mass Transit. Build Libraries in your core cities.
Good Wonders to Get (preferably by SGL): Pyramids/Temple of Artemis/Lighthouse-Magellan's.
Histographic Victory takes the longest, bypassing Domination & Conquest victories on the way. Remember, the other Victory types have different strategies for winning.
