jlb524 wrote...
Why recruit Jack? Because you need another powerful biotic, just in case something were to happen to Samara along the way. Realistically, Samara could die in any battle, so Jack would be your back up powerful biotics user.
Except at that point Samara isn't on the dossier list. The OP is asking for RP reasons and people are being stupid giving her OOC reasons.
Ok so RP thinking head on, up to getting to purgatory all you know is that Jack is a powerful biotic and that TIM has paid for her release. You don't know much else about her. Maybe you talk to that prisoner who basically states he don't want to come with you if Jack is going with you. Ok maybe a bit concerned now, but hey who would trust a prisoner that killed people, right?
So then the Warden does the dirty on you, you get out of the spot you were trapped in and find the release mechanism that will set Jack free. You then see Jack for the first time and she obliterates 3 YMIR mechs singlehanded (Did you solo the YMIR mech on Freedom's progress?) and then tears a hole in the wall and begins her escape. Now at this point you go through the whole ordeal of getting out and end up running into the Warden, you kill him, you then encounter Jack whilst the ship is going down. Jack points out she hates Cerberus, something which as others have said, surely if you are a Paragon you wouldn't be liking much either. She asks for access to their files.
As mentioned before, you could just agree to that and leave her on the ship, maybe she'll find something that will you could pass over to the Council or Alliance? Thus she could be useful.