The rules themselves were heavily streamlined, as promised, though many more procedures were introduced to the game, increasing complexity and playing time (as well as the likelihood of rules arguments). The modelling of infantry weapons was overhauled to prevent unrealistic tactics, and machineguns and ordnance were given variable rates of fire (in other words, the ability to fire more than once per phase, with a certain unpredictability as to how many times worked in). Squads equipped only with small arms now had many options to reflect weapons types; semi-automatic and automatic weapons could be simulated with rules for Spraying Fire or Assault Fire, for example.