Marines is a game designed to simulate land combat in the interstellar era.
Naturally, the rules are only one possible system, and unlike games on
historical periods, there is no way to measure the realism; we don't know
what the world will be like in several centuries from now. These
rules are based on the author's future history, which may or may not be
probable but does lead to a universe in which ground combat still exists.
SPACE MARINES is a game.
While every attempt has been made to keep the rules self-consistent and
reasonable on the basis of current knowledge, their purpose is to give an
enjoyable game. This took priority over 'realism'.
Various weapons and devices
used in the game are referred to as Type A, B, or C. This is to reflect
differing levels of technology and cost of weapons. In the twentieth
century a type A rifle would be an automatic weapon, a type B would be
semi-automatic and a type C would be bolt action.