I'm trying to partition the virus with scribe Ibsen, and I can get two but not the third. Just one of many many issues.

I think the way my girlfriend did this (I don't think it's entirely random) is that she saved the game just before he said go. Then, found each one individually so she knew were they all were (reloading each time). Then, reloaded, got them all. Maybe not the exact way one should have to go about this, but it seems to have worked in that case.