Talk:Guardian/@comment-90.210.179.84-20130809210710/@comment-24.57.33.49-20130817051333

They are called 'Priority Slots.' They act in the order you pick. As stated in the other comment:

Priority 1 - Top Left

Priority 2 - Top Right

Priority 3 - Bottom Left

Priority 4 - Bottom Right

It will constantly go through the priorities and use them whenever they can. For me, I have a Dethcube. I set it to first check my Shields always. If my Shields reach 0, it will replenish them. If my Shields are fine, it will look for any nearby enemy and vaporize/stagger it unless it is in cooldown. If it can't use Gaurdian or Vaporize, it will use Swift Deth which is its default gun. When it can't use any of them (because it died), i will use Regen, which revives it once. The best way to set ANY Sentinel is of follows:

Priority 1 - Guardian

Priority 2 - Sentinel's secondary ability

Priority 3 - Sentinel's main gun

Priority 4 - Regen

This will insure that all abilities will be used to their fullest and when needed.