Redo primitive units:
Scout: 2 -50% Melee/Archer/Mounted +50% Animals, 1 FS
Warrior: 2 +50% City
Archer: 3 +25% City +25% Hill 1 FS
Axeman: 4 +75% Melee
Spearman: 4 +100% Mounted
Chariot: 4 +75% Attack Axemen +15% retreat no DEF
Horse Archer: 5 +40% Melee +20% Mounted -10% City +25% Retreat no DEF
Swordsman: 6 +10% City
Longbow: 7 +25% City +25% Hill 1 FS
Crossbow: 6 +75% vs Melee 1 FS
Maceman: 7 +50% vs Melee +10% vs Cities
Pikeman: 8 +50% vs Mounted
Musketman: 9
Knight: 10 -10% City +20% Retreat Immue FS no DEF
Thoughts?
I made some of the "I win" spam-units weaker (axeman, maceman).
I boosted the Pikeman. They sucked.
The Horse Archer is weakened (from 6 to 5) but given a tasty bonus against melee and mounted units. This makes the Horse Archer the "axeman" of the ancient era, and makes the expensive HBR worth researching. Unike the old "axeman", this unit has a counter: spearmen.
Axe/Spear/Chariot in field, with Archer defending cities evolves to
Horse Archer/Spear/Axe in field, with Archer/Spear defending cities in the ancient era.
Swordsmen beat Spears (nearly as good as Axes) and crush Archers, but lose against Axes and Horse Archers. So the next era becomes:
Horse Archer/Spear/Sword in the field, with Archer/Spear/Axe defending cities.
---
The Mediaeval era now contains multiple paradymn-breaking units.
The Longbowman makes defense win without attackers using seige. Traditionally, it is an early unit to aim for, and effective in the hands of the AI, and less popular for players -- on second thought, I boosted it from a 6 to a 7. This makes it strong enough to hold up against Swordsmen.
The next wave of units each trump the entire ancient army:
XBow is 6/5 vs Horse Archer, 10.5/6 vs Sword and 10.5/4 vs Spear.
Maceman is 7/7 vs Horse Archer, 10.5/4 vs Spear and 10.5/6 vs Sword.
Pikeman is 12/7 vs Horse Archer, 8/4 vs Spear and 8/6 vs Sword.
Between them, we have:
10.5/8 Mace > Pike
7/10.5 Mace < XBow
7/7 Mace = LBow
8/10.5 Pike < XBow
8/7 Pike > LBow
6/7 XBow < LBow
The XBow looks great -- except Knights destroy them.
Thoughts?
UUs have to be tweaked, naturally.
Siege units need to be revamped: they are just too good. But that's a different topic.
I'm thinking:
7, no other bonuses, for the Praetorian (can match or exceed every ancient/classical unit on a head-on fight, esp. when promoted)
5 +75% vs mounted for Phalanx (instead of +100% vs mounted).
5 +40% vs melee for War Chariot (instead of +75% vs Axe).
6 strength & mobility for Kenshik, otherwise copy of Horse Archer
Edit: tweaks, UU ideas
Scout: 2 -50% Melee/Archer/Mounted +50% Animals, 1 FS
Warrior: 2 +50% City
Archer: 3 +25% City +25% Hill 1 FS
Axeman: 4 +75% Melee
Spearman: 4 +100% Mounted
Chariot: 4 +75% Attack Axemen +15% retreat no DEF
Horse Archer: 5 +40% Melee +20% Mounted -10% City +25% Retreat no DEF
Swordsman: 6 +10% City
Longbow: 7 +25% City +25% Hill 1 FS
Crossbow: 6 +75% vs Melee 1 FS
Maceman: 7 +50% vs Melee +10% vs Cities
Pikeman: 8 +50% vs Mounted
Musketman: 9
Knight: 10 -10% City +20% Retreat Immue FS no DEF
Thoughts?
I made some of the "I win" spam-units weaker (axeman, maceman).
I boosted the Pikeman. They sucked.

The Horse Archer is weakened (from 6 to 5) but given a tasty bonus against melee and mounted units. This makes the Horse Archer the "axeman" of the ancient era, and makes the expensive HBR worth researching. Unike the old "axeman", this unit has a counter: spearmen.
Axe/Spear/Chariot in field, with Archer defending cities evolves to
Horse Archer/Spear/Axe in field, with Archer/Spear defending cities in the ancient era.
Swordsmen beat Spears (nearly as good as Axes) and crush Archers, but lose against Axes and Horse Archers. So the next era becomes:
Horse Archer/Spear/Sword in the field, with Archer/Spear/Axe defending cities.
---
The Mediaeval era now contains multiple paradymn-breaking units.
The Longbowman makes defense win without attackers using seige. Traditionally, it is an early unit to aim for, and effective in the hands of the AI, and less popular for players -- on second thought, I boosted it from a 6 to a 7. This makes it strong enough to hold up against Swordsmen.
The next wave of units each trump the entire ancient army:
XBow is 6/5 vs Horse Archer, 10.5/6 vs Sword and 10.5/4 vs Spear.
Maceman is 7/7 vs Horse Archer, 10.5/4 vs Spear and 10.5/6 vs Sword.
Pikeman is 12/7 vs Horse Archer, 8/4 vs Spear and 8/6 vs Sword.
Between them, we have:
10.5/8 Mace > Pike
7/10.5 Mace < XBow
7/7 Mace = LBow
8/10.5 Pike < XBow
8/7 Pike > LBow
6/7 XBow < LBow
The XBow looks great -- except Knights destroy them.
Thoughts?
UUs have to be tweaked, naturally.
Siege units need to be revamped: they are just too good. But that's a different topic.
I'm thinking:
7, no other bonuses, for the Praetorian (can match or exceed every ancient/classical unit on a head-on fight, esp. when promoted)
5 +75% vs mounted for Phalanx (instead of +100% vs mounted).
5 +40% vs melee for War Chariot (instead of +75% vs Axe).
6 strength & mobility for Kenshik, otherwise copy of Horse Archer
Edit: tweaks, UU ideas