I haven't seen anyone else mention this yet, but it seems there's some level of detail issues in the game.
I was playing the first mission in the missions list called "Abu something". There was this long road going through the field and there was a ditch running next to the road. Sometimes the ditch completely disappeared when I zoomed or moved my camera.
Now, I know how LOD is supposed to work (you get more details when you go closer to things), but the weird thing is that the ditch sometimes disappeared when I zoomed IN. First it was visible from the distance as a dark line, then when I zoomed in, it disappeared and when I zoomed more it appeared again as a 3D ditch. And all the time there was quite bad texture flickering on the ditch.
It was quite funny when I tried to advance to the right flank with couple of strykers and one of them got stuck to this invisible ditch. It took me a while to notice that there was a ditch there. Another thing was when my infantry were walking in the ditch and I zoomed to certain distance, the ditch disappeared swallowing my squad. They reappeared of course when I zoomed to another distance.
Does the texture quality setting affect LOD?