During last match we came up with a questione, maybe re-reading rules can clarify but at this point i'm a bit confused. I'll give you some example: An Hacker move inside my HI CZ but out of my LoF, declaring hsi first short skill. I react with ARO: Reset. He declare Oblivion on my HI. The hacker check if there is range and my Aro was legal and we resolve the roll. The result is thast the Hi become IMM-B. Now, can i React to successive trooper Activation (example that Hacker Moving Away, that Hacker moving in front of me ding something, another trooper shooting at mi IMM-B HI) declaring Reset as ARO, to get rid of the IMM-B State?
Yes. As long as you have an ARO you can declare Reset when you are IMM-B (but little else). Remember that if your opponent declares a Hacking Attack against you, you need to win the Face to Face to get rid of IMM-B, not just score a success.
if he declared oblivion, you would be isolated, not IMM-B but yes, if the hacker has no stealth, you can reset again
Yes. This is the Requirement for a reactive Reset: In the Reactive Turn, they have a valid ARO, or are targeted by a Hacking Program or other Comms Attack.
Perfect! My opponent was confused by that "valid ARO" , he stated that Beeing Shot inside LoF by a troopes did not matched the "valid ARO" condition because he assume Rest was only and ever related to an Hacking attempt.