Hi FB, thanks each person is entitled to their opinion, but here have been NO changes to AI. Maybe before you had something odd in your install?
Archie was the same but incredibly inaccurate due to a bug. Earlier is less Archie, later is more. Also again as with many issues reported, before jumping to conclusions we ask people to try other settings, dates, squads, for example if there is a major battle on Archie increases.. did you check a quieter time? Also there's a setting for ground fire in workshop try reducing it? We can look at flak default settings, possibly gone more noticible because of major battle andit's more accurate, and louder (until you set your preferred settings in workshop)?
Trees are more dense in areas maybe it doesn't look as good as sparse?
Latest Nvidia drivers make the terrain weird and gritty too so if you have Nvidia and those try reverting some.