the 'how it works' on foilage, from a former LD:
THere are 2 types of foilage:
Static Meshs (these are going to be your trees, any of your shrubs, rocks, plus almost any decoration that you cannot move through).. yes I know a rock isn't foilage, but it's related for this conversation. your larger wheat/corn fields are also Static Meshes.
DecoLayers.. this will be your grass, some shrubs (usuallythe smaller ones), small rocks, maybe some other junk like bricks on a mound of debris.
.. decolayers come in 2 varieties.. regalar (like in other UEd games).. which is what the Foilage tick box disabled. from a mappers perspective this should be stuff that is PURELY decoration. Ideally, if it is on or off shouldn't effect anything but the 'prettiness' factor.
then there is something custom added for Ostfront, 'forced' decolayers. The same kinda stuff, but it is always drawn. It's been a long long time since i checked, but something like the fields in Hedgehog are the sort of this this works well on.
If anyone from the mod days remembers Citadel, that was the perfect example of why the 'forced' decolayer option exists. the map was entirely coposed of decolayer wheat fields.. it looks nice as all get out when Foilage was on.. turn it off, and *poof*.. no wheat fields.. you could see everyone that would normally be obscured.
The offical Ostfront maps shouldn't have any of this kinda issue (note, I said shouldn't.. not doesn't.. it's been far to long since I've checked that sort of thing).. if you wanna check the differences on a map.. simply tick on/off the foilage box in your video settings.
That said..
Given how often people hide in bushes, etc.. and the finate number of bushes in most maps (i mean.. how often have you played Kaukaus? i'm sure most players know every decent bush to hide in on the well played maps..).. I'll confess I've often popped a few rounds into 'suspcious' looking or often used bushes just in-case there was someone hiding in them.. same with often used windows in urban maps, etc..
i think this post actually was decently coherent.. i must be loosing my touch.