I have many problems with Blitz. First, I don't see it as a good ability for anybody else other than a high DEX, low AP per attack melee with Fancy Footwork. Yaaay you get to enjoy 20 AP for a single turn. And it costs you most of your MP, 10 Agility, and TWO feat slots. That's sounds foolish. Two feat slots, because you have to take Sprint with it to be able to move two inch afterwards and if that's not the bane of a ranged character, then I don't know what is. Consider what other stats could you improve, what other feats you could take instead of those two, are you sure those would benefint you less that that 20 AP for a single round PER battle due to that huuuuuuge cooldown? Hell no.
The fundamental thing I absolutely wanted my build to have for it's own is consistency. High dps, but not once in a lifetime all blitzed and drugged up, but as long as I want, for free, granted only by my self owned abilities. X dps that I can reliably maintain on my own, not X+Y that I can attain for a moment, then suffer the after-effects. The effectiveness granted here doesn't even cost a psi booster until the 16th round, but no battle should last our onslaught for that long (10 psi regen is okay too with at least level 1 Philosophy). The consistency is based on kicking ass 3 rounds straight, then on the 4th performing some other action in order to continue having the luxury of doing nothing but attacks until we empty our next mag. And to be able to empty it by the time we recover our cooldowns that are reduced as much as possible.
So we shoot the 10th and last bullet in our rifle (or Kneecap Shot / Trap / Grenade), then reload our weapon (4 AP with Bullet Strap belt), reduce the cooldown (10 AP with Future Oriented Increment), restealth to use Snipe + enable Blindsiding next round and repeat the cycle. I don't see a non-craftable Vitality Powder with it's one time 2 round effect and it's crippling fatigue afterwards as something that I can fit anywhere here.
Drugs are something I cannot implement in my build because those are not part of the character. Combat drugs are situational. Of course we can use them occasionally, but I don't think they should be part of the daily grind of a build that is properly made. And they benefit every character the same, so there's no point in saying one is better because they pop an Adrenaline, the other can do that too. That's like saying that mine has more HP because I use a health hypo.
Silenced 5mm Hawker? Silenced pistol has to be a NeoLuger:)