Why Liara kill Tali?
So... catfight? (pass Joker the popcorn already)
Though, while Liara probably should be using her biotics offensively instead of just for Warp Ammo, she at least picked the right weapon due to Tali's reliance on shields. An SMG is best suited for battering down shields with rapid fire, and the Shuriken is one such gun.
That said, if Tali's smart she picked up Damping again from ME1 to shut down Liara's biotics, which would dramatically turn the tide in Tali's favor as shotgun skills is something Tali is definitely ahead with as a method of making Liara Embrace the Goddess...
Either way, it'll be an impressive fight for all the people watching in the Armax Arsenal Arena viewscreens
"Is a place as any."
"At least have the courage to call it for what it is! Murder ..."
"Do you really think that if you return to the Normandy without me, without the Cerberus scientist ..."
"I want you to shut up!"
"... do you really think the others will believe any bullshit you tell them?"
"this is the funny part: it is not bullshit. I saw the scientist shoot you in the head, chased him and killed him with a biotic field ... It won't be easy, Tali, but Shepard will forget you, he has already made a time. He will do it again. "
"Damn it Liara, you knew I liked him and yet you still chased after him!"
"You weren't going to pull the trigger, so I made the move."
"Is that so?"
"What do you mean?"
"Well obviously he can't keep his eyes off me...ever since Illium and you told him you were too busy..."
"You are a liar... Shepard loves me!"
"Ha! Don't make me laugh you bosh'tet. Now I see just what you really are...you are just another Asari whore. Using your promiscuity to "lure" him into falling in love with you."
*tap on the shoulder*
*omni-blade into the chest*
"As you say, embrass the goddess...bosh'tet."
liara is just too mainstream,overrated and forced,she's "interested" only because you used the prothean beacon,i can't stand her.
while Tali looks more spontaneus and real love,she's ready to die if that means stay with Shepard and seems to be the most emotionally attached and invested in him,apart from Garrus and Thane.
that is one of the reasons i chose Tali over every other LI in ME.
and Tali should use her knife instead of the omni-blade(another thing that showed the massive streamlining of Mass Effect)