dude, blackmarket ones are the best they are the only ones really upgrading and getting, cos the others dont really do much
i use things like neural interface and vision enhancement...woosh u can see thru walls
(is that a black market one, i cant remember, it rocks anyway)
I chose Regen, Neural Interface, Aggresive Defense, Bot Domination, Soften Feet (or w/e its called), I perfer the "sneak up behind you and die" technique
lol. I beat the sword and throwing objects this way
Play on hardest and max out ur strength, now u can throw glass and INSTANT KILL, well only some glass works but its sweet.
Now speed is great to jumb over things and run fast.
Hp regenration is also great if ur low on health.
Neural Interface (the hacking computer) Awesome and get to control turrets and....WHAM THERE ALL DEAD
Emp electrical charge. Feel like you need some robot friends? Whack them with this when its maxed out and the robot is your friend for some time. And after robot kills everyone just discharge the robot with ur energy blade!
Well it makes the game extermally easy.
I beat it with no problem with a sniper, and a sword