Tank of World War2 stats not very exact ?

[alpha]

M18 16/12/2/5/2/1
M4/76 16/12/2/5/9/3
Cromwell 8/10/1/6/10/3
M4/75 8/12/2/5/8/2

a) US 76mm (3inch) gun is not as good in HE shells as 75mm gun
So 75mm Sherman should have higher anti personal ratings or those
using the 76mm should have lower ratings.

Tiger 1 12/28/1/6/10/3
Panther 13/101/6/13/4
Jg.Pz 4/70 13/10/1/6/12/4
Pz.IV/h 11/10/1/5/7/2

b) Tiger 1 has 88mm gun, which is better than US 76mm, but this gun is rated 16 in anti armor while the german 88mm is rated 12 (!?!)
c) Panther/Jg.Pz 4/70 have 75mm/L70 gun which is better (some say even better than short 88mm in Tiger1) than US 76mm. But this gun has 13, US gun has 16 (!?!)
d) 75mm/L48 used in PzIV/h (or Marder, STug etc.) has roughly the same or slightly worse AP than 76mm US. But this gun is rated 11 and US gun is rated 16 (!)
e) Tiger1 armor is much better than Cromwell, Sherman, PzIV/h etc. but has only rating of 10 (!). Cromwell has also 10....
f) Tiger1 anti personal rating is 28. A bit too high i think.

Even if you say that tanks speed is rated as armor somehow in the game system (Tiger1 slow) than the US M18 should have much higher armor value than 2, cause it was one of the fastest vehicles on tracks.

Another topic is the M3 Grant/Lee. It only has a anti armor rating of 3. Seems the designers only took into acount the 37mm in the turret and completly forgot about the 75mm short in the bow. Granted this was not of so good use cause the whole vehicle must aim at the target, but it had AP shells and even gave the Axis tanks quitew troubles as it appeared first. So the advantage that the allies in the desert had whith the first Lee/Grants appearing is not int he game at all. M3 has the same anti armor rating as PzIIIe or Stuart light tanks!