None of the bots had full ammo and there was an ammo box. Usually, they replenish their ammo quicky by running to it, but for some reason bots cannot use this one.
Also, there are 2 more bugs in this video:
Bots try to melee gatling rats, instead of shooting them. I’ve reported this bug before, but it was “archived” even though it’s not fixed, so I can’t link it here.
If bots fall down from such a ledge, they will not teleport back to you, no matter how far you get away from them. In this case, I was lucky because they already grabbed medkits, but I had quite a few cases whey bots jump down without taking them.