Question about the Endings
I've finished the game with all the different endings and noticed that the only ones that seemed to address the Red Strain at all were the 2 endings from that DLC. The Wicked Isle piece of Oberon seemed like it could be dealt with by causing the cave to collapse, but nothing obvious seemed to be available to resolve the Red Strain containment breach short of just not playing the DLC. EDIT: My main question is if there is a way to resolve the Red Strain DLC and be able to choose an ending from the base game or the Wicked Isle DLC?
Also, does the poison from the Abbott's head or Dr. Holder satisfy each other's endings or do you need to use their specific poison to choose said ending?