One thing that would have helped me understand what is happening and why things went bad, would be more messages. I think many other people would be helped by this as well, especially beginners.
Right now we have:
- Commander under attack
- Strategic launch detected
- Base under attack
- Units under attack
- Power stall
- Build too expensive (when a new build project consumes more than base mass/energy income)
- Mass/power overflow
- T2/T3 factory detected
- Experimental detected
- Tactical missile launcher detected
- Strategic missile launcher detected
- T2/T3 artillery detected
A warning "tactical missile launcher detected" followed by the mysterious destruction of a mex will help new players understand what happened faster. I remember often being dumbfounded how a mex was destroyed until watching the replay.
Edit: obviously, these notifications are based on your own intel, if you don't see the TML for instance then you are not notified.