PHOENIX COMMAND
The game scale is 2 seconds a Phase, which is broken up into .5 second
impulses and 2 yards a hex or inch. Each character has a number of CA
or combat actions with which to act. and different actions take
different amounts of CA to do. for instance run 1 hex is 1 action, to
open a door is 3. go from standing to prone 2 etc. an average person
has from 4 - 6 CA per 2 second. CA are also used for aiming.
There are a whole slab of modifiers to use when aiming; too numerous to
list here, but they cover just about any situation you may need.
anyway bullets do high or low penetration. ( PEN ) if the pen is less
than the armour ( PF ) then the bullet doesnt penatrate. if it's higher
but not double it does low PEN, and if its double high PEN. High pen
does all the killing. bullets also have a damage class ( DC ) Which is
basically how big a hole they tear through flesh. The bigger the DC the
deader you become. Also if the PEN is low the bullet will always only
do DC 1. and the pen usually pretty low as well.
I've had a situation were a face plate of 4 PF has saved a character
from having his brains blown out by a .45 to just his jaw blown off.
in the basic book there are 39 different hit locations for a human,
from head glance to liver spine, heart lung, etc. All the frag,
shotgun and auto fire rules use geometry to calculate how many bits hit
a target. basically of a 5 round burst is fired into a 2 yard hex then
there will be about 1 bullet every 40 cm. so as a persons chest is
around 30 - 40 cm wide then there is a % chance of being hit by one
bullet. if the 5 rounds were fired into a .5 yard area then there would
be an automatic hit or 2. This may change with range firing stance etc.
Grenade have a base concussion at different ranges that is taken as
straight damage. Thats basically the first book, PHEW!
then there is advanced rules, and PC expansion.