Some more tweaks I would like to do with MCP. Some are just minor updates, just to list the changes, but others are more fundamental.
Please, let me know if it's all okay with you or not. I will upload the changes in a few days.
Iran
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IMIDRO (Research Lab)
It has no bonus over the RL, though its description sais: "...adds production".
As it is a mining company I would like to give it a free engineer.
Langobard
=============
Cloister (Arena)
I want to change it to a Scriptorium replacement, with the +1 free priest kept and to have it +3

, not 2.
Mamluk
=============
Exhibition (Museum)
Add Archaeology +10%

(as Museum)
Mexico
=============
Charreada (Arena)
+1Xp for melee units and +1Xp for mounted units
Rurales (Cuirassier)
Cost down to 160 from 190
Minoan
=============
Anaktora (Court house)
+2

when connected to capital (replacing +1 Trade route)
Moche
=============
Huaca (Standing stone)
+1

(replacing +1 Trade route)
Morocco
=============
Berber pasture (Granary)
Replaces Butchery, not Granary.
Mutape
=============
Zimba (Castle)
Remove +1 Trade route
Mycanae
=============
Megaron (Arena)
The description says it was a "great hall".
I would like to change it to a Theater replacement, with a lawyer and a priest slot.
Nubia
=============
Medjay police (archer)
Fix upgrades
Pict
=============
Crannog
Remove trade route yield bonus
Polynesia
=============
Marae (arena --> altar)
Now it is a Ceremonial Altar wit +25%

and requires Mysticism only, not Priesthood and Sacrifice.
Scythia
=============
Scythian Stable
update cost and unhealth
Seleukid
=============
Thorakitai (Light swordsman)
Remove -1

per turn (pre-industrial units should not have extra maintenance cost) but increase cost to 65 (from 60, which is the cost of a regular Light swordsman)
Songhai
=============
Mandeku (Knight --> Rider)
Replace Rider, not Knight. (According the description it was a light cavalry)
S-Africa
=============
Boer Commando (Cavalry)
Add ignore terrain cost
Cost down to 250 from 270
update other stats
Swiss
=============
Hallebardier
Remove -1

per turn (pre-industrial units should not have extra maintenance cost) but it still costs more then a regular Heavy pikeman.
Tibet
=============
Chorten (Standing stone --> Scriptorium)
Replace Scriptorium, not Standing stone.
Khampa (Horseman)
update Ignore Terrain Cost
Timurid
=============
Kurash Ring (Barracks)
update stats
Troy
=============
Troyan Agora (Market)
update stats
Ukraine
=============
Zaporozhian Cossak (Cavalry)
Speed down to 2 from 3
Gets Ignore terrain cost instead
Vedic
=============
Rathin (Chariot)
update stats
Venezuela
=============
Liberatador (Cavalry)
update stats
Welsh
=============
Caer (castle)
Remove +1 trade route.