First I want to thank developers for their hard work. This is THE game I've waiting for a long time. I've been having great fun so far. But always there is some areas that some tweak is needed.
1. Is it possible to add range tool? Two kind of tools is needed. One which you can stick to map and another which can be sticked to moving target example ship. With range ring it's much easier to deploy your ASW forces to right distance.
2. Addition to range tool/ring it would be great if you could make "permanent" range rings for your weapons/sensors. By permanent I mean that it will show even after selecting another unit.
3. "Line/distance tool" would be neat too.
4. It's hard to determine range for air missions. Some tools to show you how far your plane can reach would be nice. Maybe colored range circle before you launch your planes.
Hopefully you can tweak this great game even more with patches. Keep up the good work!