Sayid's tying his hair back, probably so's not to get blood on it. "What needs to be done," he says, but he says it really quietly, so I don't think Jack actually heard him.
Flashback! Tariq's sitting in a room, and Sayid enters, carrying the Torture Tackle Box. Did Sayid take some sort of crash torture course or something? Tariq's surprised that they're letting Sayid speak to him alone. Sayid simply says that Tariq needs to tell him where the pilot is (and we learn that Iraqi for "helicopter" is "helicopter"). Meanwhile, he opens the box and starts taking the tools out, which is probably scarier than any actual torture. There are tongs, and blades, and The Dukes of Hazzard on DVD, and maybe you're thinking that it doesn't sound too bad, but it's actually the season that Bo and Luke were replaced by Coy and Vance, like what kind of sick fuck torturer has Sayid already turned out to be?
Tariq thinks it's hilarious that the U.S. Army's new bluff is that Sayid is going to torture Tariq. He finds it high-larious, what with Sayid being a loyal soldier and the son of a "great hero," according to Tariq. He gets a little more urgent as he sees Sayid's fairly serious about it. He tells Sayid to take one of the, um, torture bags, I guess, and put it over his head and tape it up: "Kill yourself, now! That's an order! Do it and die with what little honour you have left," he says. Tariq must be a lot of fun at the office Christmas party, huh? "Since you have photocopied your ass, take your gun and kill yourself to preserve what little dignity you have left!" Sayid's finally realized that Tariq must not be such a good guy after all, what with the "ordering of his own suicide" thing. Tariq spits in Sayid's face. Bad move, because Sayid's got pliers.