Spain OOB33
Apart from mentions above, I can't verify Nationalist Spain artillery, only small remarks:
059 105mm M.19 Azul - icon should be eg. 2121 - the weapon is apparently
https://en.wikipedia.org/wiki/Canon_...1919_Schneider (now it's modern twin-trail long cannon).
Greek OOB uses photo 1221 for this (or similar) gun.
450 CTV Obice 75L32 - again, it would be 75/27, not modern 75/32 gun. Range should be 200 (now 207). Icon should be 2111 (for M1906 gun - BTW, it's better also for Republican unit 86).
451 CTV Obice100L17 - short 100/17 howitzer in fact had range 8.2 km (
https://it.wikipedia.org/wiki/%C5%A0koda_10_cm_Vz._1914) - now it's 204. Icon should be 2115 (now it's modern twin-trail long cannon).
Unit 497 Obus de 100mm should have the same picture 16038 (now it is long 100mm Skoda).
"Il 100/17 fu impiegato dal Corpo Truppe Volontarie nella guerra civile spagnola con un numero non precisato di batterie; un certo numero di pezzi, con relativi trattori, furono lasciati all'esercito spagnolo."
There's a problem with off-map
456 CTV Batteria100 and
503 100mm Bateria then, but short Skoda 100mm did not shoot that far indeed.
452 CTV Obice105L25 - if it is 105L28 (Italian version of Schneider)
https://it.wikipedia.org/wiki/105/28, than range was 13 km (now 212!).
Picture is short Skoda howitzer - better is original Schneider 23108, but it differed in a shield:
http://waralbum.ru/wp-content/upload...s8osc4.th.jpeg,
https://flames-m58ip69dfg.netdna-ssl...art-105-28.jpg,
https://i.pinimg.com/originals/fb/57...0ede82bc03.jpg.
Icon should be single-trail 2117 (like other 105mm Schneiders).
Same for
457 CTV Batteria105
BTW: same for Italian unit 164 Obice da 105L25
500 Obus 10cm K18 -standard icon for K18 is 2125
60 Bt 10.5cm Azul - photo should be leFH18 (eg. 2635)