Is it just _me_, or does a lab holding a killer virus capable of wiping out 95% of humanity seem like the _last_ place to have a firefight in?
As for the Admiral's transformation: Obviously someone saw Voyager's "Warlord", in which Kes gets taken over by the bloodthirstiest, shoot-'em-firstiest, doggone worstiest military dictator in Ilari history.
A so-so ep.