The Vanilla AI are terrible, I find myself looking for AI mods to make the Firefights more fulfilling - but I do resent having to do that a bit. Upvoted

I have noticed this problem too (However i haven't tested the AI lately) they use to engage at further distances but the problem there was that they were too damn accurate (2-4 shots from an assault rifle would normally hit you enough to kill you).

"The AI don't attack anything past 400 meters"
Yes they will. Vehicles will engage other vehicles even if they are further than 400 meters...

@Gekkibi: Obviously im talking about normal infantry. thus the "stand there doing nothing"

@HaydebG
Then edit the ticket so that it's obvious.

I this still valid? (please consider the optics the AI is using - e.g. standard rifleman won't really try much to engage beyond few hundred meters while a sniper will try to get a shot even on 1km)

@oukej yes i just tested and it is still valid. I placed an enemy soldier on a hill and stand 370 meters away with a trigger to print the exact distance between us every second. I fire at the enemy and he sees me and goes prone. Then I begin taking steps forward. at 355 meters he begins shooting at me. if I take 1 step back to 356 meters he stops firing. Take a step forward to 355 and he begins firing at me again. Its really silly.

Like I said, even though the taliban have only iron sights the majority of engagements reported in Afghanistan for the US army occurred between 300 and 800 meters.

This means Arma 3 is missing out on the vast majority of real life engagement possibilities because AI refuse to fire beyond 355 meters.