I love grenzers more than makes sense. Securitate are fun. I hope they don't lose SS2+repeater when they get updated...and DO lose some of that points cost. A SS2 hacker is wonderful as a backup for the interventor against sneaky HIs and is a mean bodyguard up close (indoors).
I really like the SS2 and Repeater and even the LSG it just comes out to a lot for something that often ends up acting like a Fusilier. I think there's a lot they could do with it to make it great though. It's worth saying that I was using them and never actually regretted it while having them be vital in a lot of games. I only stopped to focus on Corregidor. I like the HMG most. Maybe reducing them to SS1 and giving them some more Nomad unique weapon options would be enough.
