In warhammer 40K there are three parts movement, shooting, and close combat.
Part one movement. Most foot troops move 6" in movement but heavy wepons
can't fire unless the states say other wise. Tanks move a maximin 12" but can't fire its guns. If it moves 6" it can
fire one gun, skimers can move 12" and fire one gun but has a maxmin on 24".
Part two shooting. In the shooting part you unload your armys weopons on the
emeny. All of the wepones have diffrent stats. some fire 210" others can only fire 6". Some you have to guess others don't.
the shooting use the BS this ranges from 1-5 the higher the number the more chace there is to hit heres the chart:
BS What
roll
1
6
2 5
3
4
4
3
5 2