Then you'll have to move Heavy Skirmishers back too. I'd rather work with the tech tree we have.
TL;DR, swap some RCS/CS stats for more movement and a nerfed version of withdraw from melee
chariot Archer/war chariot ==> no change
skirmisher (11

/11

) ==> (8

/10

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
Horse Archer (11

/11

) ==> (11

/12

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
Heavy skirmisher (19

/15

) ==> (14

/15

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
Camel Archer (23

/17

) ==> (19

/17

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
**Note**: loses 80% withdraw from melee, but splash damage now a larger proportion of total damage potential
Cuirassier (30

/23

) ==> (23

/23

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
Hussar (34

/27

) ==> (27

/27

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
- lightning warfare
- sentry
Naga Malla (33

/28

) ==> (33

/28

)
- 3

moves
- No rough terrain penalty
- feared elephant
*Note*: no change from current design. Still a tank. loses withdraw on melee attack and 2 moves now
Cavalry (42

/30

) ==> (35

/30

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
Comanche Rider (44

/30

) ==> (40

/30

)
- 5

moves (+1 from promotion)
- No rough terrain penalty
- 50% chance to withdraw from melee attack
- no movement to pillage
- +1 moves promotion
*note* loses 80% withdraw from melee, but gains additional RCS vs base cavalry
Berber Cavalry (46

/33

) ==> (42

/33

)
- 5

moves
- No rough terrain penalty
- 50% chance to withdraw from melee attack
- Ignores terrain cost
- Homeland Guardian
*note* Berber cavalry currently has both the rough terrain penalty AND the ignores terrain cost promotion. Lol.
Light Tank (58

/50

) ==> (52

/50

)
- 5

moves
- No rough terrain penalty
*Note*: does
Not have the 50% chance to withdraw
helicopter ==> no change
Mongolia Change: 2 moves and ZOC to mounted ranged units changed to +1 move and +1 attack to mounted ranged units (stacks with logistics)