Here is a fine example of not using your Dakka smartly. Instead of pistols, one of these two Deathwatch Marines should be using a Heavy Bolter with Hellfire rounds or Bolter with Vengeance Rounds.
That's a maybe. Deathwatch doesn't use Autocannons they have better stuff. (like Barrage Plasma guns) Astartes vehicles have had them replaced with Assault Cannons.
Here is a fine example of not using your Dakka smartly. Instead of pistols, one of these two Deathwatch Marines should be using a Heavy Bolter with Hellfire rounds or Bolter with Vengeance Rounds.
Wouldn't an auto cannon do?
That's a maybe. Deathwatch doesn't use Autocannons they have better stuff. (like Barrage Plasma guns) Astartes vehicles have had them replaced with Assault Cannons.
run or shoot?
screw both, double the shooting