You'll see in the above photo that the end of each of the launch tubes has a reddish primer/cap, just like the Grad, one of which is just ahead of the Uragan in the photo.
One of their prime uses is to pin an enemy force in place and cut off their avenue of rapid retreat by sowing minefields almost instantly behind and around the enemy. Each rocket can carry 312 PFM-1 mines:
And here's my battery:
The six launcher vehicles, a 1V18 forward observer vehicle, and the battery commander in a UAZ-469.
A little bit more artillery for my East Germans and I'll be satisfied. More from me next post.