Zaeed's involves liberating a refinery from his old mercenary company, and confronting the fact that he's kind of an amoral bastard. On the plus side, their loyalty missions unlock straight away. They just tell stories based on which items you look at in their rooms. The other difference with the DLC squaddies is that they don't have back-and-forth dialogues when hanging out on the Normandy. It makes having to fight through an entire office tower to recruit Thane seem a hassle by comparison, though Thane does have much more kissable lips.
They're noticeably different from the others, with no recruitment missions-in veteran mercenary Zaeed's case, you have a quick chat on Omega and he immediately joins the squad.
(Image credit: EA) Zaeed - The Price of RevengeĪs if the 10 squadmates of the base game weren't enough, Mass Effect 2 threw in two extras as DLC.