I've made two big mistakes previous to Omega Ranch. I am now having trouble defeating Namir because I picked up the chip at LIMB and now my augs have been shut down. My health bars are not ful. Could hardly find any health packs at Omega Ranch. Should I continue trying to defeat Namir or replay all the way back to the Harvesters.
I did pretty much the same thing. You can beat him by grabbing a laser rifle and a heavy machine gun. Run to a corner on the outer ring of sculptures and wait for Namir to show up and start sniping you with his plasma rifle. Once he does that, just snipe back from cover with the laser rifle. He won't change position as long as you two keep this up, and eventually he'll die. You may next want a tuturial on how NOT to punch your screen after your upcoming encounter with Megan. that skank. Hope it helps.