There's David Vincent and even if he's not an architect anymore it's still cool.
But it's Xcom files ! Mulder and Scully should be in it
Maybe Mulder presence can recruit better agents.
Maybe Scully can count as 5 scientists and cost only 1.
Maybe with a mission against Eugene Tooms in a house where he disappears in the walls. You have to defend Mulder and Scully and kill Tooms (or so you think) . You can recruit who had survived Mulder Scully or both. And yes Tooms will return later.