Curious about SGII

Quick curiousity question,

  I've never seen the rules so I know nothing about the game
system, but I was wondering how well they would work for a 
boarding action?  Would you have to heavily modify them 
Scenario: 

A group of trained space marines on ship, boarding action 
from religious fanatics.  Marines turn off artificial
gravity figuring that the fanatics won't have null-g 
experience.  (Borrowed from Paladin, 
http://www.angelfire.com/or/FireHorse/ )  How well would
SGII deal with this?  Is this more something that could
be done by DS which I also have no experience with.

Thanks

Roger Books
(Two favorite games, FT and Fantasy Rules!)