On Normal, the Needler was a nifty weapon, occasionally useful, yes, but eclipsed by better options. BUT, on legendary, is where the Needler REALLY gets to shine. Veterans would call it the Elite Killer for it is superb at overloading their shields and killing them in a shower of needles. I love it for its ability to track and hit moving targets to a great extent, such as Grunts, Sentinels as examples, though it eats through ammo in a flash if you aren’t careful.
P.S. The Needler was outstanding in Halo 3 against Flood Combat Forms, but i forgot whether this is also the case in the first game. The Prima Official Guide lists under its section “Hope you dont have to rely on this weapon”.
My Rating : 8/10