Okay... call me weak or whatever but I gave in! I used the above work around and ran past the first group of Romulans until the "Subdue Tal Shiar Agents" thiny popped up on the side. I continued on killing... There was much bloodshed! I got the recording from the shuttle etc.
Then I back tracked and freed the 4 romulans, clicked consoles on my way back down toward Mountain Pass. And yea... It worked and I was able to complete the mission.
It may be just a simple case of having to run a few feet past the first group of Romulans in order for this mission to be successful but that aint the way it should be! Fix the mission please Cryptic before even more players get as frustrated as I did! Thanks!