Bradley targets bots but is unable to damage them?

Hi,
There's a few things this could be.

BotReSpawn does have a per-profile option called APC_Safe which should stop APCs targeting BotReSpawn npcs completely.
It doesn't monitor or control damage - It controls targeting behaviour.

In your case I'd say something else is blocking the damage.

Do you have TruePVE or similar - A pve/pvp/damage control plugin, that might be blocking npcs (scientistnpc_roam) from this kind of damage?

If you want the APC to stop attacking altogether, set APC_Safe to true for the relevant profiles.