Yes, those are great ideas, I want to see more!
The idea here is to try and get the community involved, so you have made a really good start there.
Incidentally, over on the official forum someone had a similar idea to your Counter-Artillery Doctrine...
Artillery Doctrine:
- Recon Overflight
- GrW 42 120mm Mortar Team
- SdKfz 165 Hummel 150mm Self-Propelled Artillery (to be able to lock down to increase its rate of fire and range)
- Redistribute Resources
- Railway Artillery Support
Thought it was quite interesting.
PS: Could a mod please change the thread title to 'Ideas for new free 'Community' commanders' - thank you!