I know night shooting has been a valuable experience for me.
The first time you do it, you'll realize a lot of sights are worthless in the dark... and night time is like half the day
You might want to read up on HJ Poole, Mosby, and Paul Howe's material. They are gold mines of ideas
Practicing target identification should be up there.
A well managed and safe Force-on-Force segment is also invaluable (Triple check that NO WEAPONS are in the training area)