I have looked all over for tutorials on doing this but not one.
How can I make something shoot a billet or a ball for like a first person

press space to shoot

the bullet is on layer two because the add active actuator only works on object in a nonactive layer

for most guns you wouldn’t want to do this [becuase it would pass right through things without collisions], and instead use a ray sensor and a significant amount of python

for example [only can open doors, but extendable for more things]: