Keep your health high to maintain higher critical hit chance. Make sure you are fluid with timing on using skills and whacking (finishing) downed player. Finish enemies with your pistol preferably. The reason to run health skills instead of pulse for higher critical hit chance in this build is longevity. With Vicious you can gain what you would from a pulse in critical hit chance and have more healing capabilities, relying on med kits less. Note that you can have more firearms or stamina as long as the weapon talents requirements are met.