As compared to https://www.ufopaedia.org/index.php/Base_Locations_(Apocalypse)#Hard_Level
WH 5 (furthest south-east) is correctly government-owned and named but unavailable for purchase
WH8 has the layout of WH5
Campesino has a layout normally found on novice only (the crab map of both Heavenly towers and WH7)
As pointed out on Discord by Beorn
On EASY Warehouse 9 has the wrong template
It should look like this

EDIT: Confirmed in OG, WH9 should be a diamond

For resolving these issues, we need to check all bases against the information at
https://www.ufopaedia.org/index.php/Base_Locations_(Apocalypse)
Ok I will fix that as well.
Probably best to check against the game - I think there's been a few times the wiki isn't as accurate as you'd hope.
Agreed
Ill aim to confirm later
Another error confirmed
On medium WH3 should be a cross NOT a diamond
Here's the OG

Confirmed with vanilla that the wiki is correct.
Compiled list of discrepancies:
All good for Novice and Superhuman
Easy
WH9 has the wrong layout, should be diamond-shaped
Medium
WH3 should be a cross
Oliver Twist Block, again, cross and diamond reversed (should be diamond)
Hard
WH5 (furthest south-east) is correctly government-owned and named but unavailable for purchase
WH8 has the layout of WH5, should be a "devil horns" hand gesture kindof layout
Campesino has a wrong layout, should be a wide rectangle empty in the middle
Hard difficulty fixed in pr #487 , closing issue as #488 and #489 cover other problems found
Most helpful comment
Ok I will fix that as well.