[Marcello]

Some notes on SP mortars

According to SIPRI the first self propelled mortars were delivered in 1983, these were 240mm 2S4 and modified MT-LB.

Formation 170: SP Mortar Bty
Formation 171: SP Mortar Pl
Initial availability date to be changed to 1/1983 from current 1/1975

Unit 220: MT-LB/82
Availability dates should be changed to 1/1983-4/2003 from current 1/1975-4/2020

Unit 221: MT-LB/120
Availability dates should be changed to 1/1983-4/2003 from current 1/1975-12/2020

Unit 223: 2S1-240
Initial availability date should be changed to 1/1983

Unit 222: T-54/160
Initial availability date should be changed to 1/1983 or later

Unit 218: Mortar Truck
Final availability date should be pushed forward to 12/2020, so that it can be used as gap filler in the formations.
I also suggest an icon change to icon n. 2962

Eventually, if you have the time to spare, some M113 based mortar carrier could be added with an availability date of 1/2011or similar. Unit 33 of obat 12 USA could be a good candidate.