You don't target it to shoot it. When you examine the camp a set of pressure plates appear to open the door.
I had to have walked over every meter of that cave and no "pressure plates' found.
Originally Posted by Salami_Inferno
That's odd. The romulan you speak to should count as a group, and the in that cavern there should be the rest. If you can't find them leaving the map and coming back to continue might clear it for you.
Tried that a min ago, I beamed back in to have the mission at the same exact point as I had left it. Maybe I should just exit STO completely for a few min, then log back on.