Cool, that should solve the fence problem in cs_militia and the stairs in cs_matrix. ANy time a bot is trying for more than 10 seconds to reach a node and has jumped and crouched and hasnt moved, it should try another route. But make sure the bots try jumping, ducking, and duck-jumping before giving up, and they should remember what worked. So if you have to crouch to get in a vent, the bot should figure that out, and remember to crouch whenever it tries to enter the vent.