Buying Volunteers and upgrading soldiers can be done at the Barracks
At Rank 6 (lvl 110) upgrade you will have to fuse 2 of the same soldier type together turning each of them 2 slots to deploy.
*Denotes start of Mounted soldier branch. At lvl 60 upgrade mounted soldiers will receive massive stat boost, but cost 2 slots to deploy.
“To get upgrade Tokens you either:
1) Farm enemies that drop your preferred upgrade tokens (not all Tokens can be dropped)
2) Open Lucky Bags dropped from bosses or buy tokens from shop (Top-right corner)”
All Soldiers basic attack is single target except the beast warrior branch that deal AoE as basic attack.
**Beware of Confusion From Barbarian(R1) Branch: Beast Warrior (Riders striped tiger)(R2) evolves to Mahout (Rides Elephant)(R4) From Cavalry Branch( R1): Huns Soldier (wears turban Rides Horse) evolves to Tiger Leopard Rider(Rides Black Leopard)
Additional info in Chinese for Chinese speaker or for translation apps: