Hello
For two weeks now, AIs I place in editor and set to "careless" detect players and turn towards them, move and even shoot at them (the latter only when right in their face while the two others seem to follow classic detection distance). If the AI has a grenade in it's inventory, launchs it at the players (not always).
Before that, and for several years, AIs set to "careless" were basically braindead : the only reaction of an AI to player's presence was to look at them once spotted, nothing more (while still having ambient animation, weapon lowered and reactive to Zeus' orders).
Also, AI I place in editor have that behaviour with players other than me when the mission is played on dedicated.
AIs I placed in editor before I had the problem now behave like this.
Of course, happens in vanilla.