D2782/rP23753 made rams slower and prevented them from attacking fields or organic units.
D2815/rP24528 allowed all civs to construct rams.
This patch:
* lowers their base costs from 350 wood and 200 metal to 300 wood and 200 metal;
* changes experience loot to 20% of health and resource loot to 20% of costs;
* to make civs less similar, gave rams different values, depending on which actor they use:
```
wood , health , movement
cost , , speed
brit, gaul : −30% , −30% , +15%
athen, spart : −20% , −20% , +10%
cart, iber : −10% , −10% , +5%
mace, ptol, sele: , ,
maur : +10% , +10% , −5%
rome : +20% , +20% , −10%
kush, pers : +30% , +30% , −15%
```
* removed the +20% crush damage from the pers and rome rams (their new higher health makes them stronger already);
* slightly adjusts some ram footprints:
{F1784099, width=500}
[EDIT] While at it, standardizes the loot of the other siege engines too:
* resource loot to 20% of costs (all)
* experience loot to 20% of health (ram and tower) or 100% (artillery)