Thanks for resetting my account antp, I got back in now. I just hope that doesn't happpen again.

I went over everything and it all looks good. There are only a couple of things, mostly stuff that was overlooked or was my mistake.

The M4A3E4s are missing the name Sherman
https://www.imcdb.org/vehicles.php?make=Fisher&model=M4+A3+E4&modelMatch=1&modelInclModel=- on

'HVSS' can be removed from the additional info here, since now it's in the name
https://www.imcdb.org/vehicle_1938431-Pressed-Steel-M4-A1--Sherman-.html

Remove "75(W)" from the additional info. Ford didn't make wet ammo stowage Shermans. That's what the W signifies.
https://www.imcdb.org/vehicle_183392-Fisher-M4-A3--Sherman--1944.html
https://www.imcdb.org/vehicle_115044-Fisher-M4-A3--Sherman--1944.html

"Modified" can be removed from the additional info
https://www.imcdb.org/vehicle_286535-Fisher-M4-A2--Sherman-.html

This is a real, Chrysler M4A3 (76)W HVSS Sherman. I must have put in under the made for movie ones by mistake.
https://www.imcdb.org/vehicle_575377-Pressed-Steel-M4-A1--Sherman--1942.html

The four Sherman IC Firefly's should have "Hybrid" added as additional info, as they have the composite half-cast half-welded hull, which not all of them had.
https://www.imcdb.org/vehicles_make-Chrysler_model-M4+Sherman+IC+27.html

These M4A1s can be identified as Montreal Locomotive Works Grizzly's because of the particular tracks and drive sprockets they used. So they go here https://www.imcdb.org/vehicles_make-Montreal+Locomotive_model-M4.html
All Grizzlys were made in 1943
https://www.imcdb.org/vehicle_56767-Pressed-Steel-M4-A1-Sherman.html
https://www.imcdb.org/vehicle_595019-Pressed-Steel-M4-A1-Sherman.html
https://www.imcdb.org/vehicle_355219-Pressed-Steel-M4-A1-Sherman.html
https://www.imcdb.org/vehicle_549388-Pressed-Steel-M4-A1-Sherman-1942.html
https://www.imcdb.org/vehicle_1792491-Pressed-Steel-M4-A1-Sherman-1942.html