Infantry support guns
320 Cannone 65mm - same as 593 above
322 Cannone 70mm - same as 594 above
324 Cannone 75L17 - same as 595 above
326, 358 Cannone 75L18 - same as 596 above - again, two instances of apparently the same gun.
328 Cannone 105mm - same as 597 above
333, 367 Cannone 149L17 - same as 28 above. However, it was not an infantry support gun, but heavy 2-ton corps howitzer. Anyway, icon and photo would be of unit 28.
From quite comprehensive infobox "Artiglierie italiane della seconda guerra mondiale" in Italian Wikipedia
https://it.wikipedia.org/wiki/Templa...uerra_mondiale it appears, that "Artiglieria d'accompagnamento" used 75 mm guns max, and Artiglieria "da montagna": 105/11 max.
Also usage of 105/11 as improvised AT guns 329 and 366 is doubtful (and the first one is available too early)