Training Points + Order Arrows

Training points are used to accelerate recruiting. When you recruit soldiers, you can see "Time required" and "Accelerate" below, put scroll your cursor on "Accelerate”, it will show how many Training Points you have.

You can acquire training points by doing some scrimmages. Go to the faction map. Click on an army. (The army which you need to click is behind the footmen). Send a hero with some troops to the fight against the army. .
If you win, you get training points, and you don’t lose any troops during scrimmage even if it’s listed in the battle results. When your hero comes back from the fight your soldiers will all return as well.

Order Arrows can be obtained from Faction Quests. Every and each faction quest has it's own reward, so not all of them will give you Order Arrows. Order Arrows can be exchanged at:
Faction Camp → Faction Rewards.

Each reward item has it's requirement of Order Arrows, so if an item needs 30 Order Arrows, you'll need 30 Order Arrows before you can exchange.