The Culling

Despite how this must seem, this is MUCH easier than winning an online match.

The AI bots don't seem to be very clever at all. I don't believe I saw one bot opening up any cabinet or anything to hunt for items, and not one of them actually came to me and attacked me, even during the 'Red Moon' in-game event which allows you to see where all of your enemies are.

If you're not very good at the game, I suggest playing an offline game in the prison, and go around the centre buildings collecting items, and selling them so you can get over 200 FUNC. By the time you've got it, you should have found a med kit, a bandage, or a hemo drip, which will allow you to heal should you somehow take damage. Then you can use the red ? item spawners when the game enters 'late game' to get a tier 4 weapon or a rifle/magnum. Don't forget your air drop at this point too.

Get them, and you should be able to take down the last few bots with no issue whatsoever.

Good luck!