ok so I have a question... if a model with out stealth moves in ZoC of your model, but out of LoF. Are you stuck having to call change facing or reset as an ARO, or can you delay ARO like you can against holoechoes camo tokens etc.
You cannot delay unless you have Sixth Sense L1. Forcing Change Facing like that is a deliberate design decision, not an exploit.
You are not forced to do anything but declare ARO. Idle/Inaction is an option if you consider that even rotating your troop is unnecesary/detrimental. (added for clarification, since the way you wrote that looks like the ARO model has no other option but to Change Facing).
Ok one last question if you have sixth sense, and you delay . The model moves into base to base can you declare ARO. Could I then declare a bs ,cc or dodge?
Yes, unless the active model was in smoke until b2b. In that case you would only have LOF once they were in b2b and BS attack would not be a valid ARO.