Talk:SAS: Zombie Assault 4 Skills/@comment-110.175.169.24-20151212052225/@comment-24659969-20151212053208

Depends on many factors:

In terms of raw stats, Killing spree is better which gives better damage + pierce and does not use any energy at all. However, the requirement to kill 20 enemies may hinder you during some cases ie: early levels game where the number of zombies are scarce or bosses.

HtL on the other hand requires energy to activate which maybe hindered if you just used your energy for the other two heavy's active skills. But it can be activated right away and at max level will stay around with minimal downtime.

What is this mean in competitive? In multiplayer stages where there is like early race like pods, vaccine, nuclear or survivor. If the heavy used HtL right away and nabs many kills, there is a chance for other player who used Assault to not able achieve Killing Spree. Should the assault achieved killing spree, it might make comeback in kill counts.