[MasterOfTheXP]

Yeah...you'll unfortunately have to place some "disabled" objectives, then. I've tried parenting a CTF flag to a player, and that didn't work (although placing it in Arena made some bots move after a while) but placing a neutral, locked control point or two seems to work great (if I recall correctly)

Well, maybe not locked, but cp_orange_castle_forts, with its collection of 8 or so control points, has the bots moving all over the map trying to capture all the points, and taking a long time to win the round for one team.

If you place more than one neutral control point, and use TF2Attributes to set "increase player capture value" to a negative value on all of the players (preventing them from capturing) the bots will probably go to the points. (Although they'll probably stand there...)