I just noticed that the lower your terrain settings are, the more the terrain literally fades away making everything from static ingame objects to people and vehicles look like they would be flying in mid air.
I noticed this when I wanted to attack somebody at the Kamino Lighthouse with a GM6Lynx while standing at Camp Rogain, sequentially I found out that you can fix this with setting your terrain details to Ultra, however some people might not be able to set it to Ultra due to insufficient hardware.
I uploaded two screenshots showing the Kamino lighthouse with Ultra and with Low terrain settings:
Ultra settings: http://cloud-2.steampowered.com/ugc/576738217939950711/D839AA06F38CFD0CB06BD78C27DF313A0DB35793/
Low settings: http://cloud-2.steampowered.com/ugc/576738217939944282/BE445699999F3E0CBF6E363481F53EFC6D129166/
A developer asked me to upload my video settings. Well, here they are:
Basic:http://steamcommunity.com/sharedfiles/filedetails/?id=147399056
Rendering:http://steamcommunity.com/sharedfiles/filedetails/?id=147398946
Quality:http://steamcommunity.com/sharedfiles/filedetails/?id=147398888
Edit: This problem has even got worse now, currently the terrain details have NO impact on the terrain level and everything's flying around in midair in the distance. {F19593} {F19594} {F19595} {F19596}