Regarding the turn order, each unit has an initiative that determines who goes first (it is displayed as a boot icon).
What I definitely noticed is that archers have no limit on the number of shots!
I don't even know if this is a plus or a minus for the game.
I thought the same about the initiative.
And regarding the archers, I'm sure it's a negative. Moreover, I haven't seen any ballistae, first aid tents, or ammunition carts anywhere. I guess they're not in the game. Another thing has been cut.