So I'm thinking about this for our Saturday game:

4 players
English: 1 SoL, 3 frigates, 1 SoL (which starts with damage to ship and crew, effectively halving its strength). The English are escorting their crippled flagship to the safety of England, but first they must sail through French guarded straits.

French: 1 SoL, 3 frigates, 1 coastal battery placed as a central island.

Play area: 2 mats (probably going to use a large felt mat I have as I currently do not have 2 mats, lol)

The French must destroy the flagship, the English must escort her to safety off the other side of the board. Reefs/shoals and coastal tiles will mean that the central island has to be sailed around, but can be avoided with due care of maneuvering.

Thinking about a point system:
French: +1 per English Frigate sunk, +3 for the SoL, +5 for the Flagship
English: +1 per French Frigate sunk, +3 for the SoL, +2 for the coastal battery, +5 for getting the flagship off the board

Really not sure on these as I have no idea what I am doing =D