to be clear, I didn't say drills are THE problem, they aren't even in the top 5, these are just recommendations.
The top issues in the game (in my opinion) are...
- T4 Armor is too cheap/easy to get
- M4 / Silencers too cheap/easy to get
- Rifles that penetrate walls/HESCO are very OP
- Map/Squad planning is less than desirable
Not a complaint, an opinion... I play the game every day, I have a blast with it. These are the top issues I see, with over 120hrs in game.