Please help me!!!!! I almost finished the quest. I beat Katzenstein and all. I went to go talk to Watson after, and he is not there!!!! please help me!!! I don't want to have to do it over again. I have to talk to him to finish the lab. Help!!
I would suggest reviewing the dialogue for the quest and see if Watson says to meet him someplace other than where you are looking. Click on the little question mark at the left top corner of the quest.