M4A4 Sherman speed inconsistencies (various OOBs)

[Griefbringer]

Again trawling through OOBs, I noticed that M4A4 Sherman (aka Sherman V) tends to have various speeds in different OOBs. I could locate following cases:

* France (OOB 06)
- unit 078 (speed 13)

* Great Britain (OOB 07)
- unit 022 (speed 11)
- unit 023 (speed 11)
- unit 194 (speed 14)

* Canada (OOB30)
- unit 022 (speed 14)
- unit 025 (speed 14)
- unit 027 (speed 14)

Besides those, both Canadian and British OOBs list a lot of Vc (Firefly) variants, all with speed 11.