Originally Posted by machievelli
Technical: Remember that a squad is only around a dozen men in most armies. The numbers you describe should be called a platoon. Check out the Resource Center, specifically the Expert forum post two.
Inspired by this, i've put together a collection of links relating to the various military bodies in the Star Wars universe, with the hopes that it will be useful to people featuring the various organisations there in depth:
Star Wars Military Organisations
Hope it helps!