Afaik, i don't care about how you walk to a door, ie. If i walk to the button first and then go through the door (which is logical, i am not a bot
) then the bot does not care.
i don't know abou tpod waypointing that much, but i think you can still use the method. The bots will just sense the path is obstructed. You will have to overwrite the old path with a temp new path to the button, then when you hit the button, you simply create the path to the goal again, and u're done!
as for cs_siege, here is my theory:
set a flag on the waypoint/node that requires to be on an elevator. This waypoint MUST be on the floor of that elevator. When you set the flag, the waypoint will search for the entity that is the elevator and remember this. (so in editing mode the elevator should be downstairs, u should be in the elevator and then set the flag). Now, you also should have the node/waypoint at the button too already. When you got these 2 , then you are finished.
1) The bot will go to the node of the elevator
2) the bot will notice that this node is flagged
3) it will now go to the button you refer to by the flag
4) the bot goes to the button, hits use
5) the bot will go back to the elevator