I playtested this at a con years ago and it was a lot of fun. The object here is to portray Juicers (or other super-humans) as way above and beyond the average person. This is like anime ninja gaming. Juicers in this setting are so far above normal soldiers that they can take them on a squad at a time.
Here are the rules:
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Juicer Mod Rules
1. Juicers are strong. Juicers deal M.D.C. damage in hand-to-hand. As long as they have an M.D.C. weapon, are wearing M.D.C. armor, or are in some way using M.D.C. material to deliver the damage, the Juicer gets his or her P.S. bonus in M.D.C. So, a normal Juicer with a P.S. of 30 does 15 points of damage to M.D.C. targets. A Titan Juicer (or any Juicer with supernatural P.S.) with a P.S. of 30 does 4D6+15 M.D.C. damage on a punch (normal punch damage, plus damage bonus). No distinction between punch and kick damage is made; it's all the same.
Against "soft" S.D.C. targets like unarmored humans, convert the M.D.C. damage to S.D.C. by multiplying by 10 instead of 100. So, that 15 M.D.C. punch would do 150 S.D.C. of damage to an unarmored person. Splat.
M.D.C. hand-held weapons such as vibro-blades add their damage to hand-to-hand damage. So, 3D6 vibro-claws in the hands of a normal Juicer (with a P.S. of 30) do 3D6+15, or the Titan Juicer does 7D6+15. Inflicting three times the maximum damage of the weapon will break it. So, if the total damage roll for a vibro-knife (1D6 regular damage) including damage bonus is 18, it breaks after dealing the damage. This leads Juicers to use weapons that are a bit stouter, like vibro-claws.
Juicers can also break things with their superior strength. Doing half of the remaining M.D.C. on a physical, hand-to-hand attack will break an object. So, if a vault door had 30 M.D.C., a Juicer (or anyone else) could break it by doing 15 points of damage in a single physical attack. Damage done with energy weapons doesn't count, but explosives do.
A further example: If the door had 50 M.D.C. and the Juicer did 15 points of damage, the door would be reduced to 35 M.D.C. and remain intact. Another 15 points reduces it to 20 M.D.C. and it remains intact. Another 10 M.D.C. will break the door. Alternately, a single power punch doing 30 M.D.C. would break the door off on the first hit. Such is the advantage of doing massive damage (and finally a good reason to use a power punch).
If armor is broken, damage is done to the person inside it. So, a power punch doing 30 M.D.C. will break through old-style light Dead Boy armor (50 M.D.C.) with its first 25 points and the remaining 5 go to the wearer (in addition to the armor). Again, converting the 5 M.D.C. points to S.D.C. is done at x10 instead of x100 because the brunt of the impact is taken by the armor and what gets through is greatly reduced. In this case the person wearing the armor would take 50 S.D.C. points of damage, probably enough to kill or severely injure whoever is inside.
2. Juicers are fast. Juicers get full dodge bonuses to auto-dodge, effectively making every attempted dodge an automatic dodge. Juicers are subject to the -10 rule, but get their full dodge bonuses as well. All Juicers, with the exception of the slower Titan Juicers, can also completely negate the -10 rule by forfeiting all attacks for a melee round and doing nothing but dodging, evading, and running. One dodge roll is made, with bonuses, that applies to every attack defended for the round. Keep in mind that the base requirement to hit a moving target is 8 (maybe 12, depending on range and conditions) and the shooters must beat that even if the Juicer's dodge roll is low.
Juicer acceleration is basically instantaneous, so movement can be at full speed within one attack. This means the slowest Juicer alive can clear an American football field, endzone to endzone, in one melee round. This is often done while attempting a "full dodge" as described above to close distance with an attacker to nullify the advantage of ranged combat.
3. Juicers are tough. Juicers are totally immune to all pain and exhaustion during combat or other intense situations. They are also completely impervious to Horror Factor. No matter how scary that monster is, the Juicer’s Bio-Comp will prevent certain chemicals from being produced and not allow him or her to experience fear.
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One rule that's not in there is that I modified initiative a bit. For one, remove "two attacks for living" from every character (Juicers included). This means that HtH: Basic, Expert, and Martial Arts all begin with TWO attacks, not FOUR. While removing attacks seems contradictary with making Juicers the ultimate badasses, it actually helps a lot. Under these rules the average 1st level Juicer will have 5 attacks (2 from HTH, 2 from augmentation, plus Boxing) while the average combatant will have only 2 or maybe 3. This allows the Juicers a 2:1 attack advantage. Including the additional two attacks, the average Juicer will start with 7 attacks, but the average combatant will have 4 or 5, greatly reducing the Juicer advantage.
Since Juicers have so many attacks, I allow them to take them whenever they want, pretty much. If the Juicer has 5 attacks and the combatant has 2, I tell the Juicer to take two normal actions (matching his opponent) and then 3 bonus attacks/actions throughout the melee. These can be spread around to different targets, used at the beginning to try and knock out the target early, saved until the end, used for dodging, etc.
Let me know if anything is unclear and I'll try to explain it or give examples.
