woodshadows
King
Do open or rough terrain promotions provide defensive bonuses against ranged or only melee?
Pretty sure they count against ranged.
The Cover promotion (Shield) is the only one that directly minimizes the damage from ranged attacks. Drill and Shock are combat effectiveness promotions. Although they do nothing to minimize damage from ranged attacks they do allow a unit that has taken damage to be more effective (Depending on terrain type. Drill gives a bonus for Rough terrain, Shock for Open terrain) in combat than a non-promoted unit.
The Cover promotion (Shield) is the only one that directly minimizes the damage from ranged attacks. Drill and Shock are combat effectiveness promotions. Although they do nothing to minimize damage from ranged attacks they do allow a unit that has taken damage to be more effective (Depending on terrain type. Drill gives a bonus for Rough terrain, Shock for Open terrain) in combat than a non-promoted unit.
I've played enough to argue this is wrong. I am quite sure the relevant terrain promotions will reduce damage from a ranged attack. A shock 3 infantry sitting on plains will take a much less severe hit from enemy artillery than will a green infantry on the same space.
In middle-age, late wars I often use a (rough terrain 3) unit into an enemy cities range to soak the shots while sitting on a far hill. Ranged strength is still compared to opp unit's strength when firing. The more relevant terrain promotions, the better the comparison.
So the inevitable question is, how do you disperse your promotions amongst units? Assuming a standard map with a variety of terrain types, are there advantages to rough terrain bonuses over open? Is one terrain type more prevalent over the other?
It really depends on the map you're on, and whether you're defending or attacking... I like to have some units with drill promotions, and others with the shock promotions, that way, if you're sharp, you can defend or attack anywhere. If you're attacking, I like to have units take the promotion against cities as soon as it's available too... always good for extra damage against cities.
More importantly, look at the map to see what you are likely to need... then take those promotions, that way you're more likely to make good progress. If in doubt, take drill over shock, as it helps to offset a enemy's advantage if you're attacking it in rough ground... shock promotions give you an advantage over other units, drill promotions even up the enemy defender's advantage. On ground that is 50/50 rough and plains type, you'll normally want 2 drill to 1 shock type unit.