To place a counter on the map, on the construction side, a player needs to spend a card with a value higher than what is on the "built" side. To finish the construction (flip the counter), either the counter needs to survive to the reorganization phase or the player plays a second card with the value higher than structural value on a construction side. It is more expensive to start the construction than to finish it. The phrasing is confusing, I think I will try to color code the costs or use symbols on the counter (3A - 1B, for example, to give the notion that first one needs to pay 4+ and then 2+).

Good catch - yes, one builds in an occupied space. I will add this in the next edition of the rules.

Massilian damaged walls counters: I have decided to include only one, because the second damaged wall concludes the game with a Caesarian win. Can it be added to the postcard? It can, but this would require some layout changes... and I would rather concentrate for now on the clarity of rules. Once they are more solid and error-proof, I will know how much space I have for additional counters.

2 ramps and one brick ramp or 3 ramps. Historical narratives/ maps for the siege underline only two approaches/ ramp locations that have been used by Caesarians. In other words, I made a decision for the players to decide which way they want to go. Brick ramp will only enter play once at least one regular ramp has been destroyed - there won't be three approaches available to the Caesarians at any single time.
(Gallic Gate received "weaker" -4 modifier in contrast to other Walls having -5 modifier; it seems that Caesarians concentrated here, maybe because of elevation differences being potentially smaller than with two other parts of the walls).

Same amount of pips for Massilians in Solitaire. I have not written anything about it on the postcard... but possibly even division would work the best for solitaire game: so all Massilian dice end up on 4 pips (12 pips total) and one Albicii die also have 4 pips. Question: where to place Albicii in solitaire variant? They could start with Fleet, they could start in Reserve (where during my solo tests I liked to place them).

Could be randomized... or maybe I will think of some ways of writing those additional details onto the postcard. Space is a tricky thing... I even started considering the two-player version of the postcard and a single player of the postcard... but, at the moment, this is the last resort (though it would give me the chance to flesh out more ambiguous elements - for example, are Massilians AI doing anything doing the reorganization?

Assigning dice pips to the Fleet space = my mistake. During setup, Massilians should divide their 12 Massilian pips and 4 Albicii pips between Wall spaces, Reserve space and Fleet Space = 5 spaces total for 5 dice that they have. So, the Fleet is "populated" during the setup and, later in the game, it can be changed during the Reorganization segments.

I will mark this as the correction that needs to be added to the setup procedure for Massilians. I won't ammend the files immediately, I will leave this for few days - there may be other things that we will find out. (I know, for example, that Massilians could have clearly stated opportunity to re-Build damaged Walls... but the rules as written currently are silent on this)

Thanks everyone for joining this curious designing adventure! (where not everything is set in stone yet :P )