Hmmm, that didn't work for me. I tried that, but the thing just kept sideswiping me. Since I STILL don't have a suit, his claw attack was always one-hit death.Blood suckers are easy to kill in the open. just keep moving backwards in a straight line, this gives you a sec or two before its on you an generally insures that it will be coming at you from the way your facing. When they commit to attacking you they turn semi transparent, so just hit it with some buck shot. they seem rather weak to it. 2-3 decent hits usually does it.
I dunno, maybe this was some super-bloodsucker, as I could only see his eyes for a fraction of a second before it disappeared completely again. Its growls seemed to be coming from every direction, so I had no useful audible cues as to where it was. Its attack was incredibly swift. To compound matters, its movement was very herky-jerky because of how much of a system hog the X-Ray engine is on systems. I get all kinds of frame-rate drops on my 3 gig 550 on medium settings.
If you know the area, you can get by without the UPD for awhile, but it will eventually become essential. Not only does it power your PDA, but also your headlamp, which you HAVE to have if you plan on engaging in night raids, otherwise you're limited to your wind-up flashlight and one-handed weapons.oh and after about 30 f*cking hours i finally got the upd or what ever that thing is that powers the pda is called so thank god for that.
You should also buy at least one battery pack if you haven't found one via stashes or corpse ransacking.