Have some quizzes that awards participants with a small treat for completing them as a way to better teach mechanics that may not be included in present tutorials or are obscure.
Common question that should be mentioned:
How does the engineer reload an emplacement?
Answer: Equip hammer and hold T while looking at emplacement and also having enough resources.
Are you able to throw back a grenade?
Yes
Do called in bombing runs lock out other radio operators on your team from calling in artillery?
Yes
Do Molotov’s cause friendly fire:
yes
What is a rally point and why should you build them?
They are how you win battles; as by placing these handy spawn points in good locations you gain points from anyone who spawns there and allow your teammates to spawn in better locations than the default spawns.
and so on. So long as the quizzes are short, possibly 5 questions, they should do a better job of informing players of things they may not know.
Also, how do I rebind “extinguish soldier”, t is a bit of a stretch.