Argh, why are gold-the-resource and gold-wealth still called the same thing?
Interesting information on the Battleship's 'indirect fire'. Why is this ability necessary? In Civ, if any unit can spot a target, then (e.g.) another fighter or a airship can attack it.
It looks like this is not the case in Civ5. Maybe each unit has a 'visible range' for ranged attacks. (Guess: if you're on higher ground, your visible range increases). If a target is in shooting range but not visible to the shooter, you can't attack it unless you have the 'indirect fire' ability.
All units have always had a visible range, in civ4 it was 1 (the tile your on and 1 tile in each direction) unless you move onto a hill in which case your sight range is 2.
Hence the unit upgrade of sentry.
I just looked at a video and an archer had a sight radius all around it of 2 hexes, so lets just assume this is the standard, (it is likely) then the battle ship will only be able to "see" 2 hexes away, so without a "Sentry" Upgrade like in civ4 to shoot its maximum of 3 hexes distance another unit will have to be closer to the target, so escorting your battleships with destroyers to stand infront of them will do this.
Also we know that hills block bombard range, so if normally a battleship wouldnt be able to shoot over a hill if another unit say on the hill could see the next tile the battleship wants to shoot at again Indirect fire will allow it.
It's a nice ability if you ask me.
As to why has gold got two meanings, thats because it has and both are used in the game

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Time for some more screen shot analysis.
The great wall being constructed, surely this is the best looking "under construction" wonder that ever existed.
The Collosus, Info:
+1 Gold to all water tiles in this city (not all cities like in Civ4)
+1 Culture per turn
+1 Great Merchant Point per turn
Must be built in a coastal city
The Game Concepts, truely any newbie will be able to find out everything they need to know from the Civilopedia, Manual not necessary.
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And another unit update
Lancer,
It is indeed a horseman between knight and calvary, and the stats are correct, but this needs to be added,
"Disadvantage - Penalty to Defense"
From the Civliopedia.
Mounted unit designed to be on the attack, and recieves a combat penalty when on defense. Good for hunting down enemy mounted units