Good thing you can report those places to get them fixed.
If you can put a screenshot and map location of any problematic bits of scenery we'll take a look - just make sure to pop the links to your Steam screenshots in Steams Hell Let Loose its 'Report a Problem' sub-forum https://steamcommunity.com/app/686810/discussions/1/ :), or if you do not have access to the Steam links, just hit us up with map location data, and maybe a cheeky screenshot or two and send it to www.team17.com/support and we'll get on it!
👆 This 100%!