Excellent! If you have Space Hulk, a 3-man Terminator squad would be easy to implement, 2 lives for the 2 Marines and an extra die for the bolt guns. All move as heavy weapon units. One heavy weapon, or a 1-die reroll in hand to hand for everybody.
Space hulk board squares are a different size, but you could combine the boards somehow.
There were official rules for Terminator squads in SC (I think it was WD 145- had rules for Terminator squads, while WD 154 had rules for adding a Librarian to the squad).
Basically, you give up four gear cards, and can suite up with some awesome terminator statlines.
(that issue also had rules for scouts squads and ork boarding parties, as well as some goodies for including more 'nids in the game).