About This File
This mod improves your ability, without visual aids, to locate (and react appropriately to) aircraft being engaged by AA fire. It does this by permitting use of the 'Hard' Workshop setting for ground guns (which setting reduces the 'spread' of AA bursts by increasing accuracy), but reducing both rate of fire (which 'Hard' setting also increases) and lethality. With FlakMod, it's easier to make out if enemy planes under AA fire but which you can't yet see are higher or lower, coming or going, so you can make tactical decisions while you still have options.
Thanks are due to Bletchley, for permission to modify and use some files from his excellent 1917 Mod. If using the latter, FlakMod probably needs to be enabled/installed on top/afterwards.