I've done thorough testing of Signal Jammer, it's bugged to shit. I could do with some Reddit updoots on my ticket about it, for anybody who has a Focus account.

When it works, it's pretty great as a safety net. It also has a 50% chance of just not working at all.

https://community.focus-entmt.com/focus-entertainment/space-marine-2/bugs/9083?page=1