Can anyone let me know where I can find the rules on "Heavy Weapon"?

"Heavy Weapon" is a trait. It has no in-game effect, but other components may require the use of a specific trait (such as command cards).

Thanks

Was there a specific situation that occurred that you have questions on?

I thought Heavy Weapon forbade units from moving and shooting. I think I saw that on Youtube, but I could not find the rules.

I thought Heavy Weapon forbade units from moving and shooting. I think I saw that on Youtube, but I could not find the rules.

I think you are thinking of the ability "Tripod"

Tripod: During your activation, you cannot voluntarily exit your space if you attack, and you cannot attack if you exit your space.

I thought Heavy Weapon forbade units from moving and shooting. I think I saw that on Youtube, but I could not find the rules.

That's just with the eweb at this time. I can't think of any other units with such a restriction.

So with that unit, it can't move and attack.

Yep, it is the E-web