Yes, you need to view see the FAQs. They reworded everything. (PAG 134) VISIBILITY CONDITION Zero Visibility Zone: • Troopers cannot draw LoF into, through, or out of a Zero Visibility Zone. • Any Trooper who is the target of a BS Attack into, through, or out of a Zero Visibility Zone treats the Zero Visibility Zone as a Poor Visibility Zone when drawing LoF to the attacker. And https://forum.corvusbelli.com/threads/faq-1-2-news.40814/#post-426301 If White Noise isn't involved, MSV1 Troopers follow all their standard rules. So if they are the target of a BS Attack they get to react through a Poor Visibility Zone, with MSV1 reducing the MOD to -3.