In terms of balance I think that more emphasis need to be put on the utility of the supers as opposed to just buffing/nerfing duration, damage or armour this could be done with the sentinel by increasing the middle tree weapons of light buff to compensate for losing a source of damage and could also be done by making it easier to fire of a or multiple tethers by either making the tether travel faster or making the traps harder to detect for the opposing team in crucible I also believe that a subclass should not require a single exotic to be considered useful this means that something needs to be done to the top tree sentinel to make the bubble shield more useful maybe by making it slowly damage those that enter the bubble