New South Wales
Let's look at the text of both Skills:
Bloodlust: Melee – Spend one Action with the Survivor: He
Moves up to two Zones to a Zone containing at least one Zombie.
He then gains one free Melee Action, to use immediately.
Hit & run – The Survivor can use this Skill for free, just after
he resolved a Magic, Melee or Ranged Action resulting in at
least a Zombie kill. He can then resolve a free Move Action.
The Survivor does not spend extra Actions to perform this
free Move Action if Zombies are standing in his Zone.
Bloodlust provides a Melee Action. Hit & Run triggers off a Melee Action. Thus, yes, you can combo the two Skills. It doesn't matter whether there are Zombies left in the Zone or not.