In this match the condition are as followed:
Compared will be Battery vs Battery, in Winter time, sight is bad nearly 400 meters, and you have to expect one minor Infantry attack on your Battery (Infantry men are fitted with rifles,grenades and one MG).
You are firing over open field while a Forrest guards you® behind.
As for the Katyusha, it will be one half of the Battery with BM13’s mounted on ZIS-6 trucks and the other half BM-8-36 on ZiS-5 trucks.
Who do you think will win?
Good luck Commander!