Russia should bring back the Scuds
1 tonne warhead impact can be supplemented with 3 tonne fuel on board at short distances in Afghanistan
Many times cheaper to make and operate than Iskander . In WW2 the Germans used to make thousand of them a month
Guided warhead variant (3), or cluster, etc
ICBM fuel UDMH for longer range performance , Nodong engine etc not the basic