I'm actually logging most of my DCS time with the A10c getting proficiency in Airport operations in different weather and the same with weapon delivery.
Can you maintain constant parameters during Touch&Go?
Can you already employ correctly EVERY weapon system?
Can you land on one engine power with crosswind?
Can you determine the threat of items appearing on your RWR, FAST?
I keep asking myself this question, keep putting me on the line, keep challenging me...
Before thinking about campaigns (never even started one...) I want to be sure I can face whatever I get thrown in my face.
So far I'm 60% confident.