Here are my suggestions as for the British OOB:
Light tanks:
002 Mk VIc - according to
http://www.historyofwar.org/articles...tank_mkVI.html they were produced since 1939 (now: 9/35). Also David Fletcher wrote, that "shortly before the war" a decision has been taken to mount Besa in MkVI.
Maybe they should be named "Lt Tank Mk VIc", like unit 254? ("MK VI" alone is a generic designation. Same for other light Mk's)
003 Honey - picture 380 is M3A3 Stuart V, while it should be earlier model. Perfect for the British service is 27736. As photos from Italy show, old Honeys remained in use at least until 11/43.
Same for units 185 and 296.
004 Stuart VI - according to a book by J. Magnuski, only 3 Stuarts VI were delivered in 1943, and most in 1944 (now: 1/43)
I think, that
255 Honey II should be renamed to Stuart V, which was most numerous version in British use, delivered from 1943 (picture 380 is OK for this version). Now it's available since 1/43 and represents just a variant with better gun. Stuarts V sure remained in use much later (now 6/43), although I have no info if they were still used with turrets in 1944. Armour (slanted) should remain probably the same, although M5A1 Stuart VI icon would be better (unless there is a new one, with slanted sides).
Early cruisers:
005 A9 - according to AFV Weapons Profile 08 - Crusader tank and
http://www.wwiivehicles.com/unitedki...er-mk-i-a9.asp deliveries were first made in 1/1939 (now 1/35) (although the pilot model was in 1936). It would need a change in formations, earliest would be #232 A13.
Same for unit 134 A9 CS (I don't know when it starts, so maybe also 1/39, being still the earliest unit in formations)
006 A10 - picture 635 is A10 E1 prototype with slanted front. 27606 looks correct and is very nice.
007 A13 Mk II - according to a Polish monograph on A13, including a list of orders, first Mk II were ordered in 1939, so I would expect them to start in mid-1939 (now 4/38) (some publications say 12/38, but others, like AFV Weapons Profile 08 claim, that this date concerns A13 MkI).
Turret sides and rear were two slanted layers of 14.5 mm, with a space between, so maybe it should be more (now: 2)
Lesser numbers were used until mid-1942 (now 11/41, which was in fact the end of numerous use - Operation Crusader)
Picture 690 is A13 Mk I without extra armour. Correct is 691 or 27610.
136 A13 CS - should be available not earlier, than A13 MkII above (now 4/38)
232 A13 Mk I - first delivered in 12/38 (now 4/36), according to AFV Weapons Profile 08 - Crusader tank (there wasn't even a prototype in 1936). Needs changes in formations 17 and 79, being the earliest tank.
Better copy of the same picture is 690 (used for A13 Mk II now), or better is 27584.
010 Crusader II - a photo 619 seems Crusader III (without external gun mantlet)
Other tanks:
020 Sherman I - photo 384 is M4A1 Sherman II. Could be 27717
Same for 193, 220
022 Sherman V - photo 384 is M4A1 Sherman II. Could be 27730
Same for 023, 194
300 Sherman II - photo is OK for this version, but 27723 seems a drawing of sand/black British camo.
301, 302 Sherman Hybrid - front cast armour should probably be no better, than 021 Sherman IIA / US M4A1(76)W (9, now 10).
303 Sherman III - photo 384 is M4A1 Sherman II. Could be 27725, 27726
030, 365 Valentine III - according to a Polish book, first Valentine III was produced in 4/42 (now 7/41), and it should remain longer.
Photo 639 is some two-men-turret early variant (I-II)
031, 147, 366, 367 Valentine IX - it's a detail, but these tanks were known for their lack of CMG - would it be possible to shoot an AAMG, between gun shots, with two-men turret?...
Regards
Michal