If he must jump
I've actually seen moments where bots would 'jump' if stuck on something in BF2.
I specifically have seen bots, albeit in BF2142, jump in specific spots like over crates and holes in walls... But again, that's BF2142.
or climb a ladder to get there
If only there was someway to 'fake' this behavior. Like an invisible elevator that would lift a bot up, or take him down, when it would hit a 'trigger'. I think of 'old school' Day of Defeat bots when I think of bots and ladders.