I don't know jack about games but on getting in to them the first thing I wander about is :

Maybe the importance of understanding the game engine fully and how the data that is used for characters and levels affect playability and performance. Ei. Like some older engines are sensitive to how the geo is constructed, if I'm not mistaken ? Mike ?

Possibly, some ideas for how to test and evaluate the engine. Then set goals to utilize it to the max.

Thin again these things might be only more relevant to a Technical or Art Director. But normally a person works for them so it might be good to understand where there coming from ?