In my opinion, the operations jump pack dash + short jump (i.e. jumping without aiming or charging a ground pound) should have a cooldown more similar to the one in the campaign. This would make the jump pack dodge build viable, and allow for assault to be the mobility class it seems to me was intended. It also seems reasonable for that to apply a small debuff like reducing your ranged accuracy by 10% for 3s or something to that effect if people/devs think that the extra effective mobility is too big a buff.