"Whatever we do I think it's important that we deal with the two Viking Horse Archers. It would be a nightmare if they started roaming around. Attacking next turn is also good since we have gold for one more turn."
If we wait to attack Nidaros next turn, then we can't upgrade the archer in Ecbatana to a Xbow this turn and put him aboard Shannon's Raiders next turn, because our economy would go into the red IBT.
We can deal with the Nidaros HA's. Here's how JT might go about it:
Promote cat south of NID to 2CR/collateral damage and attack with it.
Attack with 1CR cat on same tile.
(Not clear to me if there is another cat available, but, if so, he should be used at this point)
Promote sword south of NID to 3CR and attack with it.
Choice of subsequent attackers will depend on damage done to defending units, but JT will have many units available, including a 2-move WE SE of the city and total of six units in galleons within easy sailing distance of the city. Indeed, if the attack requires all available landed WE to be utilized, we could keep the city and the galleon NW of the city could sail into its harbor and unleach its 2 WE's on the Viking horse archers in the forest and still be able to deposit its cat on the tile NW of Uppsala this turn.
Regarding Persepolis . . . Unless another unit shows up in Gordium IBT, the axe might best be attacked with the promoted CR2 cat, saving other units. If we keep the city, the axe will likely take it and stay in it for the rest of the game to heal.
Pasardadae should build a cat, followed by a chariot. There is the possibility of chopping an archer for defense, although the workers might also be used to distract units.
Cat and sword in Mecca go to Kufah and another cat built whose marching orders can be based on events.
At Damascus, move sword, WE, and cat (in galleon) onto flood plain west of city this turn. The trick in Damascus is probably going to be to use the swords first in order to leave a WE(s) to mop up any surviving archer (who'll defend in lieu of a chariot against a WE) that is not very badly wounded and hopefully leave only chariots and <1 archers alive for the second attack.
Need to see what's in Susa before finalizing plans everywhere. Suggest move worker to 1SE, then if safe move to tile 2NE of city to try to entice cat in that direction if that tile is not safe, move to NE onto forest.