where is a upgrade path tree?

[Unstable_Hero]

I need to make some upgraded troops for a lord, so i need to train recruits, however i can't find a tree that shows me which upgrades to pick to get to the troops i need.  I searched checked the library but no luck.

 

[Moss]

Here you go:
Swadians
Vaegir
Khergit
Nords
Rhodoks
Neutral

 

[Adorno]

The Rhodoks are missing a troop 

Crossbowman > Trained Crossbowman > Veteran Crossbowman > Sharpshooter